What Vaccines Are Given at 2 Months — The Three-Vaccine Appointment
At 8 weeks, your baby receives three vaccines:
| Vaccine | How Given | Protects Against | Key Note |
|---|---|---|---|
| 6-in-1 (DTaP/IPV/Hib/HepB) | Injection into one thigh | Diphtheria, tetanus, whooping cough, polio, Hib meningitis, hepatitis B | 1st of 3 doses — course completed at 12 and 16 weeks |
| MenB (Bexsero) | Injection into the other thigh | Meningococcal B bacteria — most common cause of bacterial meningitis in UK | NHS recommends proactive infant paracetamol at this appointment — see below |
| Rotavirus | Oral drops into the mouth — not an injection | Rotavirus (severe vomiting and diarrhoea illness) | Age deadline applies: must be given before 15 weeks; sweet-tasting; most babies accept easily |
The MenB Paracetamol Guidance — The Thing Most Parents Aren't Told
This is the single most practically important thing to know before the 8-week appointment, and it is not consistently communicated in appointment letters or by surgeries. The NHS specifically recommends giving infant liquid paracetamol at the time of the MenB injection — not waiting for a fever to develop afterwards.
Why MenB Specifically?
The MenB vaccine (Bexsero) produces a significantly higher rate of fever than the other vaccines in the schedule. Clinical trials found that 41% of babies who received MenB developed a fever above 38°C in the 24 hours after vaccination — compared with around 13% for babies who received the other 8-week vaccines without MenB. Giving paracetamol at the time of vaccination prevents the fever from developing in most cases, rather than treating it once established. A fever is easier to prevent than to bring down.
- Give 2.5 ml of infant liquid paracetamol (120 mg/5 ml concentration) at the time of the vaccination
- Repeat with a second dose 4–6 hours later if the baby is uncomfortable or feverish
- Repeat with a third dose 4–6 hours after the second if still needed
- Maximum 3 doses in 24 hours; do not exceed this
- Do not wake a sleeping baby to give a dose — give it when they wake naturally
- This guidance applies to the 8-week and 16-week appointments (which include MenB); not to the 12-week appointment (no MenB)
What If You Forgot to Give It?
Give the first dose as soon as you get home or as soon as you remember — it still reduces fever and discomfort even when given after the injection rather than at the time. The NHS recommendation to give it at the appointment exists because prevention is more effective than treatment; but giving it slightly later still provides significant benefit. Continue with the follow-up doses at 4–6 hour intervals as needed.
Does Paracetamol Reduce the Vaccine's Effectiveness?
This concern sometimes circulates among parents — the answer is nuanced. Some research has suggested that prophylactic paracetamol may slightly reduce antibody response to some vaccine components. However, the NHS clinical assessment is that for MenB specifically, the benefit of preventing febrile seizures and significant fever outweighs the very small and clinically uncertain impact on antibody levels. The guidance to give paracetamol at MenB vaccination appointments is an evidence-weighed clinical recommendation from NHS England — follow it.
The 8-Week Developmental Check — What the GP Is Looking At
The 8-week appointment is typically two appointments in one: the vaccination (with the practice nurse) and the 8-week developmental check (with the GP). Some surgeries combine them; others schedule them separately. Allow 30–45 minutes total for a combined appointment.
The developmental check is a comprehensive review of your baby's health from head to toe. Here is what the GP typically assesses:
| What Is Checked | What the GP Is Looking For | What's Normal at 8 Weeks |
|---|---|---|
| Weight, length, head circumference | Growth on track for their individual growth curve (not compared to a fixed "average") | Wide range is normal — the trajectory matters more than the number |
| Heart check (stethoscope) | Heart murmur; normal rhythm and rate | A soft murmur at 8 weeks may be noted for monitoring without immediate concern |
| Hip examination | Developmental dysplasia of the hip (DDH) — hips gently rotated and tested for instability | Smooth, equal rotation on both sides; no click or resistance |
| Red reflex (eye examination) | An ophthalmoscope or torch is shone into each eye — the reflected orange-red glow (like in a photo) should be present in both eyes | Equal bright red reflex in both eyes; an absent or white reflex warrants urgent referral to ophthalmology |
| Fontanelle | The soft spot on top of the head; size, tension, and whether it has closed appropriately | Soft and slightly concave; not tense or bulging; early closure (before 3–4 months) may be noted |
| Tone and reflexes | Muscle tone symmetry; primitive reflexes (Moro, grasp, rooting); head lag when pulled to sitting | Symmetrical tone; primitive reflexes present; some head control beginning; head lag is normal at 8 weeks |
| Social smile | Whether the baby smiles responsively to a face — a developmental milestone expected around 6–8 weeks | Most 8-week babies are beginning to smile socially; absent smile warrants monitoring at the next appointment, not immediate alarm |
| Umbilical cord/navel | Whether the cord stump has fully separated; any signs of umbilical hernia | Stump should be fully gone by 8 weeks; small umbilical hernias are common and usually resolve by age 1 |
| Genitalia | For males: both testes descended into the scrotum; for females: normal anatomy | Undescended testis at 8 weeks is noted for repeat check at 12 months; referral if still undescended |
Before You Arrive — The Appointment Preparation Guide
What to Bring
- Red book (Personal Child Health Record) — the nurse records every vaccine; the GP records measurements. Do not leave without it
- Infant liquid paracetamol (120 mg/5 ml) — for the MenB-specific guidance; bring it in your bag regardless of whether you've already given a dose at home
- A change of clothes for the baby — the rotavirus oral drops occasionally cause a dribble or a small spit-up; the injection site may bleed minimally
- A spare nappy and wipes — the GP will undress the baby for the physical examination; a nappy change is likely
- A muslin or cloth — for the rotavirus drops and general use
- Something to comfort the baby — dummy, familiar soft toy, small blanket with your scent
- Your questions — write them down the night before; the GP appointment is a good time to raise anything you've been wondering about the baby's development, feeding, or sleep
How to Dress the Baby
The thighs are where the injections are given. Dress the baby in clothing that allows easy access without a full undress:
- A vest and leggings or soft trousers that can be pulled up
- A sleepsuit/babygro that unzips from the bottom (easier than pulling off from the top)
- Avoid dungarees, tights, or anything that requires full removal for thigh access
The GP will need more extensive access for the developmental check — so easy on-and-off clothing overall is helpful.
Timing the Appointment
Choose an appointment time that works with the baby's natural rhythm where possible:
- After a feed, not before. A hungry baby going into an appointment is harder to settle afterwards. A recently-fed baby is more content and can be offered a feed immediately after the injections for comfort
- Not at the very start of a wake window. A baby who has just woken up is alert and will feel the injections more acutely. A baby who has been awake 30–45 minutes is often beginning to wind down toward needing a nap and may settle more quickly after
- Allow buffer time after. Do not book anything immediately after the appointment. Plan to go home, give the paracetamol if not already given, and be available for the baby for the rest of the day
In the Appointment Room — Step by Step
Knowing what to expect in the room reduces the ambient anxiety significantly. Here is the typical sequence:
- Check-in and weight. The nurse typically weighs the baby first and notes it in the red book. This takes 2–3 minutes
- Brief health questions. The nurse will ask whether the baby is well, whether there have been any concerns, and whether anyone in the household is significantly immunocompromised (relevant to the live rotavirus vaccine)
- Explain the vaccines. A good nurse will briefly explain what is being given — some do this in detail; others keep it brief. You can ask questions at any point
- Preparing the baby for injection. You will be asked to hold the baby or to lie them on the examination table. Most nurses prefer the parent to hold the baby for the injections (see the holding position guidance below)
- The injections. The nurse administers two injections — one into each thigh. Each takes approximately 3–5 seconds. The nurse typically does both in quick succession. The acute cry happens during the injection and usually lasts 15–60 seconds, diminishing rapidly when the baby is picked up and comforted
- The rotavirus drops. Immediately after the injections, or slightly before them, the nurse will give the rotavirus oral drops. The timing varies by nurse preference
- Record keeping. The nurse records the vaccines in the red book and in the electronic system. They will advise you on the paracetamol guidance, normal side effects, and warning signs
- The 15-minute wait. You will typically be asked to remain in the waiting room for 15 minutes before leaving. This is standard post-vaccination monitoring — see below
How to Hold the Baby for the Injections
The holding position has a measurable effect on the baby's pain response. Evidence consistently shows that babies held upright, close to the parent's body, experience less distress than babies laid flat on an examination table.
| Position | How It Works | Best For |
|---|---|---|
| Upright against chest, facing outward | Baby held with one arm across the chest, parent's hand holding both baby arms; nurse accesses thigh from the front. Baby cannot see the needle | Most babies; allows nurse clear thigh access; reduces visual anticipation |
| Upright against chest, facing parent | Baby held chest-to-chest with parent; nurse accesses thigh from behind. Baby can see parent's face during and after | Babies who settle through eye contact with parent; allows immediate face-to-face comfort after injection |
| Breastfeeding position | Baby latched at breast during the injection; nurse administers while baby is feeding. Requires nurse willingness and parent comfort with breastfeeding in clinic setting | Breastfeeding parent who is comfortable feeding in the clinic; produces the strongest pain reduction |
| Flat on examination table | Baby laid flat while nurse administers injection; parent holds arms/head | Some nurse preferences; generally associated with more distress than upright positions; avoid if the nurse gives you a choice |
Ask the nurse which position they prefer working with. Most will be comfortable with an upright hold. Tell them if you plan to breastfeed during the injection — they will guide you into position.
The 15-Minute Wait
After the vaccinations, the clinic will ask you to remain in the waiting room for approximately 15 minutes before leaving. This is standard monitoring for immediate adverse reactions — primarily anaphylaxis, which is extremely rare (approximately 1 in 1 million vaccine doses) but would occur within this timeframe. Vaccination clinics are equipped with emergency medication (adrenaline) specifically for this possibility.
Use the 15 minutes to feed, comfort, and settle the baby. Most babies who are going to settle do so quickly when held and offered a feed. If the baby is still very unsettled after 15 minutes, let the nurse know before you leave — they can assess whether the crying pattern seems unusual.
The First 24 Hours — What Normal Looks Like, Hour by Hour
The post-vaccination day follows a fairly predictable pattern once you know what to expect. Most parents find it significantly less difficult when they have a mental map of what is coming.
| Timeframe | What Typically Happens | What Helps |
|---|---|---|
| 0–5 minutes In the clinic |
Acute crying during and immediately after each injection; most babies peak within 30 seconds and begin settling when held and comforted. Some settle almost immediately; a few remain distressed for the full 15-minute monitoring window | Pick up immediately; breastfeed or bottle-feed; skin-to-skin contact; gentle movement; calm voice. The crying is the acute pain signal — it diminishes rapidly when the injection is over |
| 15–60 minutes Leaving the clinic |
Most babies have settled or are settling. Some are drowsy or asleep from the effort of crying and the comfort of being fed. A minority remain fussy and difficult to settle | Go home. Do not plan to go shopping, run errands, or be anywhere the baby can't rest. The car journey home often settles babies through movement; a fussy baby in a car seat for an extended journey is unnecessarily difficult |
| 1–4 hours Late morning / midday |
Many babies sleep more than usual — the immune system activating is metabolically demanding. Some babies feed more frequently and take smaller amounts. Injection site may be visibly red. Most babies are quiet or slightly unsettled but manageable | Allow extra sleep; offer feeds frequently; check temperature — if above 38°C, give infant paracetamol now (or the second dose if already given at the appointment). Note the injection site redness without pressing on it |
| 4–12 hours Afternoon into evening |
The MenB-related fever window — this is when fever is most likely to peak. Baby may feel warm, look flushed, be difficult to settle, or be more crying than usual. Temperature of 38°C–38.5°C is common. Some babies remain very settled through this period; others are clearly uncomfortable | Check temperature every 1–2 hours if fever present; give infant paracetamol if temperature above 38°C or baby clearly uncomfortable (follow the dose timing from the appointment paracetamol); dress lightly; offer extra feeds; extra holding and comfort. Do not over-bundle a feverish baby |
| 12–24 hours Overnight and next morning |
Fever usually resolving; baby often more settled than the peak but may have an unsettled night. Some babies sleep deeply; others wake more than usual. Injection site may develop a firm lump visible or palpable under the skin | Continue paracetamol if fever persists or if baby is clearly uncomfortable when waking. Maintain normal safe sleep position and environment. Extra comfort night feeds are fine. Monitor wet nappies — normal nappy output is reassurance of adequate hydration |
| 24–48 hours | Most babies are significantly better or fully back to baseline. Injection site redness fading; fever resolved; feeding back to normal pattern. The firm lump at the injection site may still be present — this is normal for weeks | Return to normal routine. If fever persists beyond 48 hours, contact GP. If the injection site is still red, warm, and expanding at 48 hours, contact GP — this could indicate a local skin infection (rare) |
The Injection Site Lump — The Thing That Worries Parents Most After the Appointment
A small, firm lump developing under the skin at the injection site is one of the most common post-vaccination concerns parents contact their surgery about — and one of the most reliably normal findings.
What It Is and Why It Forms
The lump is a local inflammatory reaction — the body's immune system responding to the vaccine at the site of injection. Immune cells are recruited to the area; tissue fluid accumulates; small amounts of the vaccine adjuvant (the component that stimulates the immune response) may remain in the local tissue. This creates a palpable nodule that can be quite firm to touch and occasionally tender.
What Is Normal
- A firm lump up to approximately 1–2 cm at the injection site
- Slight tenderness when you press on it — the baby may react when the area is touched
- Persists for 2–6 weeks before gradually resolving
- Does not grow significantly after the first 48 hours
- The area around the lump may be slightly red for the first 1–2 days then fades
What Needs a GP Review
- The redness is expanding rather than fading after 48 hours
- The area is hot to touch after 48 hours (warmth in the first 24 hours is normal)
- There is significant swelling extending well beyond the injection site
- The baby has a fever beyond 48 hours post-vaccination alongside the site reaction
- The lump is growing larger after the first 48 hours
The Rotavirus Oral Drops — Questions Parents Always Have
Because the rotavirus vaccine is not an injection, many parents feel less anxious about it — but it comes with its own specific questions, particularly about what happens if the baby doesn't cooperate.
What If the Baby Spits It Out?
If the baby spits out a small amount — a dribble on the chin or a small spit — this is generally not a concern. The dose is designed with some tolerability margin. Inform the nurse if the baby spits out a significant quantity. The nurse will assess whether enough was likely swallowed and whether a repeat dose is appropriate. A replacement dose can be given at the same appointment if the nurse judges it necessary.
What If the Baby Vomits After It?
If the baby vomits within 10–15 minutes of receiving the drops, tell the nurse before you leave. Most of the dose will have been absorbed if the vomiting occurs more than a few minutes later. If vomiting occurs immediately, the nurse may consider a repeat. Do not try to repeat the dose at home — it is not available over the counter.
Will the Rotavirus Vaccine Cause Diarrhoea?
Mild changes in stool consistency or frequency in the 7–10 days following the rotavirus vaccine are possible and normal. A small number of babies have slightly looser stools than usual. This is a recognised side effect and resolves without treatment. Significant diarrhoea — watery stools many times per day or stools containing blood — warrants a GP contact regardless of vaccination timing.
The Rotavirus Age Deadline
The rotavirus vaccine has strict age limits that do not apply to the other vaccines:
- First dose: must be given before the baby is 15 weeks old
- Second dose: must be given before the baby is 25 weeks old
If the 8-week appointment is missed or significantly delayed, the rotavirus dose cannot be given outside these windows — it is not safe to give after 25 weeks. Contact your surgery immediately if your appointment has been missed and you are close to the 15-week deadline.
Feeding After the 8-Week Jabs — What to Expect
Breastfed Babies
Breastfed babies often want to feed more frequently in the 12–24 hours following vaccination — shorter, more frequent feeds rather than longer spaced-out ones. This is a normal comfort-seeking behaviour and should be met responsively. Breast milk also provides fluids that help manage the fever response. Supply will adjust; do not worry that increased feeding frequency will affect your milk negatively — cluster feeding at this age increases supply.
If your baby is completely refusing to feed for more than 4–6 hours, contact your health visitor or GP. This is unusual but worth assessing.
Formula-Fed Babies
Formula-fed babies may take smaller volumes than usual for 12–24 hours. This is normal and not concerning. Continue offering feeds at the usual intervals; do not try to force larger volumes if the baby is resisting. Check wet nappies — a baby who is producing normal wet nappies is adequately hydrated even if taking smaller feed volumes. Wet nappy output is a more reliable hydration indicator than feed volume.
Using Breastfeeding for Pain Relief
If you plan to breastfeed as a pain-relief strategy at the appointment itself — during the injections or immediately after — let the nurse know at the start of the appointment. Position yourself so you can latch the baby before the nurse gives the injection. The nurse will work around you. Evidence consistently shows that babies who are breastfeeding during vaccination cry less, for less time, and have lower cortisol levels than babies who are not fed during vaccination.
Sleep After the 8-Week Jabs — Two Very Different Normal Nights
Post-vaccination sleep is one of the most unpredictable elements of the day — and the unpredictability is itself normal. There are two very different outcomes, both completely expected:
The baby sleeps more than usual
An immune response is metabolically demanding — it requires energy and produces metabolic by-products that generate sleepiness. Many babies sleep significantly longer stretches on the day of vaccination and the night following. This can be a relief — or, for parents who are used to a specific waking pattern, it can produce anxiety about whether to wake the baby for feeds. General guidance: if the baby is sleeping, feeding well before sleeping, producing normal wet nappies, and has no fever concern, allow the sleep. A feeding check at 4 hours during the day is reasonable; overnight stretching can generally be allowed if the baby is otherwise well.
The baby is more wakeful and unsettled
Others — particularly when MenB fever peaks in the 4–12 hour window — have a very unsettled first night. Waking more frequently, harder to settle, clearly uncomfortable. This is the immune response working as intended. The strategies that help: infant paracetamol if fever is present or the baby seems in pain; extra comfort and holding (this is not a night to worry about sleep habits — respond to the need); extra feeds for comfort and fluid; a room temperature of 18–20°C with light clothing. Most babies who have an unsettled first night are significantly better by the second night and back to their baseline within 48 hours.
When Can We Return to Normal? — Baby Groups, Swimming, and Daily Life
| Activity | When It's Fine to Resume | Notes |
|---|---|---|
| Going outdoors / fresh air | Immediately — same day is fine if the baby is settled | Fresh air and a gentle walk often help settle a fussy baby; no restriction on outdoor time after vaccination |
| Baby groups / mother and baby classes | Next day, if the baby is well and has no fever | No clinical reason to avoid — baby groups are not a risk to a recently vaccinated baby; some parents prefer to wait until the baby feels their best |
| Baby massage | Avoid the first 48 hours | Pressing on the thighs where injections were given is uncomfortable; once the injection site tenderness has resolved, massage is fine |
| Swimming / hydrotherapy pool | Standard advice is one week after vaccination | Conservative guideline (injection site heals within 24–48 hours clinically); one week accounts for any post-vaccination unsettledness and injection site integrity; pool water is not a clinical risk after 48 hours |
| Flying | No restriction related to vaccination | Vaccination does not affect flying; assess based on the baby's overall wellness and any fever present |
| Babysitter or childcare | Once the baby is well — usually 48 hours | Inform the babysitter or childcarer of the vaccination date, what normal post-vaccination looks like, and how to manage fever; give them the paracetamol dose guidance |
Situations Parents Actually Face — What to Do
I'm dreading the appointment more than my baby is
This is one of the most common things parents say — and it makes complete sense. You are anticipating your baby's pain in advance; your baby does not know what is coming. The most effective thing you can do for your anxiety and for your baby's experience is to be as calm as possible in the room. Babies regulate their stress partly through the caregiver's physiological state — a calm, held baby settles faster than a baby whose parent is visibly distressed. If you need to look away during the injection, do it. What matters is that you pick the baby up calmly the moment it is done and feed or hold them. The injection takes seconds. You will be fine.
It's 2 AM and my baby has a 38.6°C temperature
This is the most common overnight call/search after the 8-week appointment — and it is reassuring context. A temperature of 38.6°C in the 12–24 hours after the MenB vaccination is within the expected response window. Give infant paracetamol at the weight-appropriate dose; dress the baby lightly; offer a feed. The temperature should begin to reduce within 30–60 minutes of the paracetamol dose. If it does not reduce, if it goes above 39°C, or if the baby's cry changes character, call NHS 111. Most parents who call 111 at this point are reassured and sent home — but calling is always the right instinct when something feels wrong.
My baby completely refused to feed after the appointment
A temporary reduction in feeding interest in the hours immediately following vaccination is normal. But a baby who has not fed at all for more than 4–6 hours, or who is refusing all offers, warrants attention. Check wet nappies — if the baby is producing fewer wet nappies than normal, dehydration may be beginning. Offer short, frequent feed opportunities rather than longer sessions. If breastfeeding, try different positions; the baby may be uncomfortable in positions that put pressure on the injection site thighs. If feeding refusal persists beyond 6 hours with reduced wet nappies, call your health visitor or GP.
I gave the wrong paracetamol dose — what now?
If you gave a slightly lower dose than correct for the baby's weight, give the correct dose at the next scheduled time. If you gave a higher-than-recommended dose, call NHS 111 for guidance. If you gave a second dose too soon (less than 4 hours after the first), do not give another dose until at least 4 hours have elapsed from the previous one, and contact NHS 111 if you are unsure of the timing or amount. Always use the dosage guide on the paracetamol packaging and measure with the included syringe rather than a household spoon. When in doubt, call NHS 111 — they will advise without judgement.
When to Call — The Clear Lines
- Difficulty breathing or changes in breathing pattern
- Sudden swelling of the face, lips, or throat
- Limpness or unresponsiveness
- A fit or convulsion (any age — call 999 for this)
- Blue or grey colouring around the mouth or fingertips
- A temperature above 39°C that does not reduce with infant paracetamol
- Fever lasting beyond 48 hours after vaccination
- Inconsolable crying for more than 3 hours continuously
- A rash that does not fade when pressed under a clear glass (non-blanching)
- Significantly fewer wet nappies than usual (possible dehydration)
- A cry that sounds very different from the baby's usual cry — high-pitched, weak, or unusual in character
- Injection site redness spreading or area significantly increasing in size after 48 hours
- Anything about the baby's presentation that does not feel right to you
Complete 8-Week Appointment Checklist
- Buy infant liquid paracetamol (120 mg/5 ml) if not already in the house ☐
- Find and pack the red book ☐
- Plan a comfortable outfit for the baby with easy thigh access ☐
- Write down any questions for the GP developmental check ☐
- Clear the diary for the rest of the day after the appointment ☐
- Feed the baby before leaving — an hour before is ideal ☐
- Pack: red book, paracetamol, change of clothes, nappy, muslin, comforting item ☐
- Arrive 5–10 minutes early to allow time to settle ☐
- Tell the nurse about any concerns since the last appointment ☐
- Ask to hold the baby upright for the injections ☐
- Tell the nurse if you plan to breastfeed during the injection ☐
- Give infant paracetamol at the time of the MenB injection (2.5 ml) ☐
- Stay for the 15-minute post-vaccination monitoring period ☐
- Check the red book is updated before leaving ☐
- Plan second paracetamol dose 4–6 hours after the first ☐
- Check temperature if baby feels warm ☐
- Note injection site — check daily for expanding redness ☐
- Know the when-to-call signs (see above) ☐
- Log the vaccination date in the red book and in your tracking app ☐
Frequently Asked Questions — 2 Month Vaccines
Three vaccines: the 6-in-1 injection into one thigh (diphtheria, tetanus, whooping cough, polio, Hib meningitis, hepatitis B — 1st of 3 doses); the MenB injection into the other thigh (meningococcal B — the most common cause of bacterial meningitis in the UK); and the rotavirus vaccine as oral drops into the mouth — not an injection. The appointment also typically includes the 8-week developmental check with the GP. The NHS recommends giving infant liquid paracetamol at the time of the MenB injection to prevent fever — bring paracetamol to this appointment.
The NHS recommends giving 2.5 ml of infant liquid paracetamol (120 mg/5 ml) at the time of the MenB vaccination — proactively, before fever develops — because MenB produces a higher rate of fever than other vaccines. Repeat every 4–6 hours for up to two further doses if needed. Maximum 3 doses in 24 hours. Do not wake a sleeping baby to give paracetamol. If you forgot to give it at the appointment, give it as soon as you get home. This guidance applies specifically to the 8-week and 16-week appointments (which include MenB) — not the 12-week appointment.
Upright against your chest — either facing outward (baby can't see the needle) or facing you (parent-to-baby eye contact for comfort). One hand supports the back; one holds the baby's arms away from the injection site. Upright holding is consistently associated with less distress than lying flat on an examination table. The best option of all: breastfeed during the injection — latch before the nurse gives the injection and let them administer while the baby is feeding. Tell the nurse your plan at the start of the appointment so they can work with the position.
The acute cry (during and immediately after the injection) typically lasts 15–60 seconds and diminishes rapidly when the baby is picked up and held. Most babies have settled within 5–30 minutes. Some take up to 2 hours to fully settle — this is within normal. If inconsolable crying continues for more than 3 hours after vaccination, call NHS 111. The acute cry is the pain signal; what follows (fussiness, fever, unsettledness) is the immune response over the next 12–24 hours, which is managed with paracetamol and comfort rather than treated as a reaction.
A comprehensive head-to-toe health review: weight, length, and head circumference; heart check for murmurs; hip examination for developmental dysplasia (DDH); red reflex test (light into the eye — checks for cataracts or retinoblastoma); fontanelle check; tone and reflexes; social smile assessment; navel check; and genital examination. It takes 10–15 minutes and covers considerable ground. Something noted at this check — a soft murmur, a hip that needs monitoring — does not mean something is wrong; it means the screening system is working. The GP will explain any finding and the next step.
Up to approximately 38.5°C is within the range of expected post-vaccination fever, particularly after MenB. Fever most commonly peaks 4–12 hours after the appointment. Manage with infant liquid paracetamol at the weight-appropriate dose, light clothing, and extra feeds. Contact your GP or NHS 111 if temperature exceeds 39°C and does not reduce with paracetamol, if fever persists beyond 48 hours, or if the baby seems significantly unwell beyond what the temperature number would suggest. Temperature in a recently vaccinated baby means the immune system is responding — it is expected and manageable.
Yes — a firm lump at the injection site is very common and is a normal local immune response. It can persist for 2–6 weeks before gradually resolving on its own. Do not squeeze, rub, or apply heat directly to it. It does not need treatment. Contact your GP if: the redness is expanding rather than fading after 48 hours; the site is hot and more swollen at 48 hours; or the baby has a fever beyond 48 hours alongside the site reaction. These signs could indicate a rare local infection rather than the normal post-injection nodule.
A small dribble is not a concern — the dose has some margin. If the baby spits out a significant amount, tell the nurse before you leave. The nurse will assess whether enough was swallowed for adequate protection and whether a repeat dose is appropriate. A replacement can be given at the same appointment. Do not try to replace a missed dose at home. If the appointment has been significantly delayed, check with your surgery whether the age deadline still allows the dose — first dose must be given before 15 weeks.
Both outcomes are normal: some babies sleep much more than usual (the immune response is metabolically demanding); others are more wakeful and unsettled than usual (fever or injection site discomfort). Neither is wrong. Maintain normal safe sleep practices regardless: back to sleep, in the cot, no props or wedges. Manage fever with paracetamol and light clothing, not by changing the sleep position or bringing the baby into the parental bed. Most babies are significantly better by the second night and back to their baseline within 48 hours.
Standard advice is one week after vaccination. This is a conservative guideline — the injection site heals within 24–48 hours clinically. The one-week recommendation accounts for: any post-vaccination fever or unsettledness resolving; the injection site being fully sealed; and avoiding pool chemicals on a healing site. If the baby is well, has no fever, and the injection site is closed and not red, the practical risk after 48 hours is low. One week is the conventional guideline — most swimming classes for babies under 6 months apply it.
Yes — an unsettled first night is one of the most common post-vaccination experiences at 8 weeks. The MenB fever window, injection site tenderness, and immune response activation can combine to produce a significantly more wakeful and difficult night than usual. Manage with infant paracetamol if fever is present; offer more frequent feeds; provide extra holding and comfort. This is not a night to worry about sleep habits — respond to the need. Most babies are much better by the second night and back to normal by 48 hours.
A Note for Parents on Vaccination Day
Here is what the appointment actually looks like in practice: a small room, a nurse who has done this thousands of times, a baby who will cry for less than a minute, and a parent who picks them up and makes it better. It is over before it feels like it has started.
What you carry out of the room — invisible, undetectable — is years of protection against diseases that were killing children at scale within living memory and are still circulating at low levels in the UK today. The injection takes three seconds. The protection lasts years.
Bring the paracetamol. Hold the baby upright. Feed them the moment it is done. Go home. You will be fine. They will be fine.
Log today's vaccines before you forget which was which.
The red book plus a phone backup — peace of mind.
Lunara lets you log vaccination dates alongside your baby's feeding, sleep, and growth records — so you always have a full picture in one place. Note the date, which vaccines were given, any side effects, and the next appointment date. When your GP or nursery asks for immunisation history, it's there in seconds. Free to start.