Tonsillitis and sore throat assessment in children
An assessment to work out why a child has a sore throat or tonsillitis, whether it is likely viral (most are) or bacterial, whether antibiotics are needed, and — for children with repeated attacks — whether anything more, such as a tonsil operation, should be considered.
✓ Medically reviewed by a GMC-registered consultant · last reviewed September 2026 · next review September 2027 · how we review
In short
- Most sore throats and tonsillitis in children are viral and settle within about a week — antibiotics are usually not needed and, even when bacteria are involved, shorten symptoms only by around a day.
- Looking at the throat cannot reliably tell viral from bacterial, so clinicians use FeverPAIN or Centor scores to judge who might benefit from antibiotics.
- Pain relief, fluids and rest are the mainstay; a 'back-up' antibiotic prescription may be given to use only if things do not improve.
- Surgery to remove the tonsils is considered only for frequent, well-documented, disruptive episodes — and watchful waiting is a reasonable choice for many children.
A plain-English summary. The detail — including risks and recovery — is below.
At a glance
A general guide. Your specialist will give you advice for your situation.
Helps decide whether antibiotics are genuinely needed, avoiding unnecessary use
A child with difficulty breathing, drooling or inability to swallow saliva, who needs emergency care rather than a routine assessment.
History, examination and a possible FeverPAIN or Centor score, then a clear plan.
Clear pain-relief and hydration advice, with a named route back if symptoms worsen.
History, examination and a possible FeverPAIN or Centor score, then a clear plan.
Pain relief, fluids and rest. Symptoms often peak and then start to ease. Use a back-up antibiotic only if advised...
Most sore throats and tonsillitis have settled by now, whether or not antibiotics were used.
Go back if symptoms are worsening after a few days, your child cannot drink, or new warning signs appear.
What is a tonsillitis and sore throat assessment?
A sore throat means pain or discomfort in the throat, often with tonsils that look red or have white spots. Tonsillitis is when the tonsils themselves are inflamed. Most sore throats and most tonsillitis in children are caused by viruses — the same sort of germs that cause coughs and colds — and get better on their own within about a week.
Some sore throats are caused by bacteria (such as streptococcus). The trouble is that looking at the throat alone cannot reliably tell viral from bacterial. Clinicians use scoring tools (FeverPAIN or Centor) that combine signs like fever, pus on the tonsils, swollen tender neck glands and the absence of a cough to estimate how likely a bacterial cause is, and therefore whether antibiotics might help.
The assessment has two jobs. First, for a one-off sore throat: to ease symptoms, decide whether antibiotics are genuinely needed (often they are not), and spot the rare child who is seriously unwell or has a complication. Second, for a child with repeated attacks: to count and document the episodes and discuss whether watchful waiting or, in selected children, removing the tonsils is the right path.
The assessment cannot make a throat better instantly, and a normal-looking throat does not rule out every cause. Its value is in sorting out who needs treatment, who needs urgent attention, and who simply needs time and pain relief.
Types, options & approaches
There may be different ways to do this. The right approach depends on the clinical question and your circumstances.
Viral vs bacterial sore throat
| More likely viral | More likely bacterial | |
|---|---|---|
| Cough/cold | Often present | Often absent |
| Tonsil pus | Less common | More common |
| Neck glands | Mild | Swollen and tender |
| Antibiotics | Not helpful | May shorten symptoms a little |
These are tendencies, not certainties — no single sign proves the cause, which is why scores are used and most children recover without antibiotics either way.
Preparing for your test
- Note when the sore throat started, the temperature if measured, and whether your child has a cough or runny nose.
- Keep track of how much your child is drinking and weeing, as a sore throat can put children off fluids.
- For repeated attacks, keep a record of each episode: the date, whether a clinician confirmed it, and whether your child needed time off nursery or school.
- List any antibiotics already taken and any allergies.
- Note any breathing difficulty, drooling, a muffled voice or trouble opening the mouth — these need urgent, not routine, attention.
- Bring your child's red book and immunisation details.
What happens
The clinician asks about the symptoms and how unwell your child is, looks at the throat and tonsils, feels the neck glands and checks the ears. They may work out a FeverPAIN or Centor score to estimate how likely a bacterial cause is.
For a one-off sore throat, the usual plan is pain relief with paracetamol or ibuprofen, plenty of fluids and rest. Where a bacterial cause is more likely or your child is more unwell, antibiotics may be offered straight away, or a 'back-up' prescription may be given to use only if symptoms have not started to improve within a few days. Swabs are not routine.
For a child with repeated attacks, the conversation shifts to counting and documenting episodes and weighing watchful waiting against referral to an ENT surgeon. You should leave understanding the likely cause, the plan, and the warning signs that mean your child needs to be seen urgently.
Is this test right for me?
A good consultation should explore whether it's the right choice for you now — including reasons to wait or consider something else.
May not be suitable if…
- A child with difficulty breathing, drooling or inability to swallow saliva, who needs emergency care rather than a routine assessment.
- Using the assessment to obtain antibiotics for a clearly viral sore throat that does not need them.
- A child whose main problem is snoring or breathing pauses in sleep, which is a different (sleep-disordered breathing) assessment.
- Pushing toward tonsil surgery when episodes are infrequent or not disruptive.
Delay or rearrange if…
- Your child is acutely and severely unwell — seek urgent care now rather than a routine review.
- You are considering recurrent-tonsillitis surgery but episodes have not been documented over time.
- A current infection is still settling, so it is too early to judge frequency or impact.
- There is uncertainty about whether past episodes were genuine tonsillitis or ordinary colds.
Alternatives to discuss
- Pain relief, fluids and rest with no antibiotic for most sore throats.
- A back-up antibiotic prescription to use only if symptoms do not improve.
- Watchful waiting for recurrent tonsillitis, as attacks often lessen with age.
- A pharmacist (Pharmacy First) assessment for straightforward cases, or urgent advice by phone — NHS 111 in England, Scotland or Wales, or GP out-of-hours / HSC Trust Phone First in Northern Ireland.
- Treating any coexisting allergy or reflux that may be irritating the throat.
Before you decide
Use this as a shared-decision checklist. The aim is not just “can this be done?”, but whether it is right for you, now, with the risks and alternatives clearly understood.
What matters most to me?
Think about symptoms, daily life, work, caring responsibilities, sport, fertility, travel, appearance and anxiety — the right choice depends on your priorities, not just the medical facts.
What are all my options?
Ask about waiting, monitoring, medicines, rehabilitation, a smaller or larger procedure, a different test, NHS referral, or a second opinion where that would help.
What would make me pause?
Active infection, pregnancy, unstable medical problems, smoking, medicines that increase bleeding, poor support at home, or feeling pressured are all reasons to slow down and get tailored advice.
What happens if I do nothing today?
For some problems, waiting is safe; for others, delay can make treatment harder. A good consultation should explain the trade-off in plain English.
Benefits
- Helps decide whether antibiotics are genuinely needed, avoiding unnecessary use
- Eases symptoms with the right pain relief and fluid advice
- Spots the rare child who is seriously unwell or has a complication
- For repeated attacks, gives an honest discussion of surgery versus watchful waiting
- Reassures most families that the throat will settle on its own
Risks & complications
- The assessment may confirm a viral cause and 'only' advise pain relief, which can feel unsatisfying
- A sore throat is painful and can make children reluctant to eat or drink for a few days
- Scores estimate likelihood but cannot prove the cause in any one child
- Antibiotics, if used, can cause tummy upset or thrush and rarely an allergic reaction
- A back-up antibiotic being used unnecessarily, or not used when it would have helped
- A throat swab causing a brief gag, with results that may not change treatment
- A complication such as a quinsy (abscess beside the tonsil) developing despite assessment
- A serious throat infection causing difficulty breathing or swallowing — a medical emergency
- Missing an unusual cause if warning signs are not recognised
The two practical pitfalls are giving antibiotics that are not needed (most sore throats are viral and antibiotics shorten symptoms only modestly even when bacteria are involved) and, occasionally, missing a child who is becoming seriously unwell. Watch especially for difficulty breathing, drooling, a muffled 'hot potato' voice, inability to open the mouth, or a child who cannot swallow their own saliva — these mean urgent help, not a routine appointment.
Published figures to discuss
The likelihood of a bacterial cause rises with the FeverPAIN or Centor score, and most sore throats resolve within about a week regardless of cause. For the surgical pathway, the most robust UK figure is the rate of returning to theatre to stop bleeding after tonsillectomy. We give defensible figures below and avoid inventing others.
| Figure | Reported range | How to interpret it | Source / confidence |
|---|---|---|---|
| Bacterial cause by FeverPAIN score | Roughly 13–18% at scores 0–1, rising to about 62–65% at scores 4–5 | An estimate of likelihood used to guide antibiotics, not a diagnosis in any one child (NICE NG84). | NICE NG84 — Sore throat (acute): antimicrobial prescribingnice.org.ukPublished figure |
| Antibiotic benefit for sore throat | Shortens symptoms by about 16 hours on average | Why antibiotics are often not worthwhile, and most children recover without them (NICE NG84). | NICE NG84 — Sore throat (acute): antimicrobial prescribingnice.org.ukSource-linked context |
| Return to theatre for bleeding after tonsillectomy (children) | Around 1% (about 1 in 100) in UK Hospital Episode Statistics | A reason surgery is reserved for frequent, disruptive, well-documented tonsillitis; an ENT surgeon will discuss individual risk. | Return to theatre for post-tonsillectomy haemorrhage in children (HES, RCS England)pmc.ncbi.nlm.nih.govPublished figure |
These are literature figures, not a personalised prediction. Your own risks and likely benefits depend on your circumstances, your health, and how your care is carried out and followed up.
What happens afterwards
There is no physical recovery from the assessment itself. 'Afterwards' is about the sore throat settling over the following days and knowing what to do if it does not.
- A painful throat for a few days that gradually settles within about a week
- Reduced appetite and reluctance to drink while the throat is sore
- A mild fever that responds to paracetamol or ibuprofen
- Tiredness for a few days, then a return to normal
Aftercare
- Give paracetamol or ibuprofen at the right dose for your child's age to ease pain and fever.
- Encourage frequent small drinks to keep your child hydrated and watch wet nappies or trips to the toilet.
- Offer soft, cool foods if swallowing is sore; do not worry if appetite dips for a few days.
- Use any back-up antibiotic only as advised, and only if symptoms are not improving.
- Keep your child off nursery or school until they feel well enough and any fever has settled.
- For repeated attacks, keep documenting episodes so a future decision is based on a clear record.
- Know the warning signs and seek urgent help if they appear.
- Paracetamol or ibuprofen suitable for your child's age
- A plan for regular fluids and soft, cool foods
- Clear instructions on if and when to use any back-up antibiotic
- A record of episodes if attacks are recurrent
- Knowledge of the urgent warning signs
- A note of when to go back if not improving
- The clinic number saved, plus your urgent-advice number: NHS 111 in England, Scotland or Wales, or your GP out-of-hours / HSC Trust Phone First service in Northern Ireland
⚠ Get urgent help if…
- Difficulty breathing, fast or noisy breathing, or a child working hard to breathe — call 999
- Drooling, unable to swallow saliva, or unable to open the mouth properly — urgent help, call 999 or go to A&E
- A muffled or 'hot potato' voice, or severe one-sided throat pain with high fever (possible quinsy)
- A non-blanching rash (spots that do not fade when pressed) — call 999
- A child who is very drowsy, floppy or hard to wake — call 999
- Signs of dehydration: very few wet nappies, no tears, sunken eyes, refusing all fluids
- A sore throat lasting much longer than a week, or getting worse after a few days
- A widespread rash with a very red 'strawberry' tongue (possible scarlet fever) needing review
Who to contact: your clinician, clinic or test provider first (keep their number to hand). For urgent advice when you can't reach them, call NHS 111. In an emergency, call 999.
General guidance — it doesn't replace the specific advice your specialist gives you.
Results & realistic expectations
For most children the assessment confirms a viral sore throat that will settle within about a week with pain relief and fluids — a reassuring result even though it does not offer a quick cure. Where a bacterial cause is more likely, antibiotics may shorten symptoms a little and reduce the small risk of complications, but most children recover well either way.
A normal or 'just viral' assessment does not guarantee your child will not become more unwell, so the warning signs matter. For recurrent tonsillitis, the 'result' is a clear, documented record and an honest discussion of whether the throat is likely to keep troubling your child enough to consider surgery, or whether it is likely to ease with time.
Most childhood sore throats are one-off and fully resolve. Some children have several attacks over a year or two and then naturally have fewer as they get older. Where attacks are frequent and disruptive, the benefit of removing the tonsils tends to be greatest in the first year or two after surgery and lessens over time, which is part of why watchful waiting is often reasonable.
Related tests, treatments or support
Sore throats often come with the coughs and colds of childhood, and recurrent sore throats may be assessed alongside recurrent infections generally. Snoring, mouth-breathing or pauses in breathing during sleep (possible obstructive sleep-disordered breathing) are assessed separately and may be their own reason to consider tonsil or adenoid surgery.
Follow-up & long-term care
Most one-off sore throats need no follow-up beyond advice to return if not improving. For recurrent tonsillitis, follow-up is about documenting episodes over time and, if the threshold is met and episodes are disruptive, referral to an ENT surgeon to discuss tonsillectomy versus continued watchful waiting.
- Keep a clear record of genuine, clinician-confirmed episodes if tonsillitis is recurrent.
- Maintain good pain-relief and hydration habits during each attack.
- Review with a GP if attacks are frequent or disrupting school.
- Re-discuss the watchful-waiting versus surgery balance over time, as attacks often lessen with age.
Repeat, follow-on and what comes next
- A back-up antibiotic may end up being used, or a child may need to be seen again if symptoms worsen.
- Recurrent tonsillitis often eases with age, so a decision deferred is sometimes a decision avoided.
- Even after tonsillectomy, children can still get sore throats, though tonsillitis itself should not recur.
- A quinsy or other complication occasionally develops and needs its own treatment.
Ask what happens if the result is unclear or needs repeating, and what is included if further tests or follow-up are needed.
What good aftercare looks like
- Clear pain-relief and hydration advice, with a named route back if symptoms worsen.
- Explicit instructions on if and when to use any back-up antibiotic.
- For recurrent cases, a documented episode record and a balanced surgery discussion.
- Written urgent warning signs, including breathing difficulty, drooling and dehydration.
What affects the cost
Costs vary a great deal between people and providers, and we don't publish prices. What matters is understanding what drives the cost and making sure your quote is complete. The main things that affect it:
- Whether it is a single consultation or includes follow-up
- The seniority of the clinician (GP versus paediatrician or ENT surgeon)
- Whether a throat swab or rapid test is done
- Whether the visit is for a one-off sore throat or a recurrent-tonsillitis review
- Whether referral for consideration of tonsil surgery is involved
- The cost of any surgery itself, which is a separate, much larger consideration
- The consultation fee and how long the appointment lasts
- Whether any swab or test is included and what it costs
- Whether a follow-up review is included
- What happens, and what it costs, if symptoms do not settle
- Whether referral for surgery would be NHS or private, and what surgery would involve
- Who to contact, and how urgently, if your child becomes more unwell
On the NHS? Sore throats and tonsillitis are usually assessed on the NHS by a GP or a pharmacist through Pharmacy First. For urgent advice when the surgery is closed, use NHS 111 if you are in England, Scotland or Wales. Northern Ireland does not have a region-wide 111 service, so instead contact your GP out-of-hours service or your local HSC Trust's Phone First arrangement. ENT referral is used for recurrent cases; private paediatric or ENT appointments may be used for recurrent problems or a second opinion.
You're entitled to your total cost in writing — including reports, follow-up and what happens if the result is inconclusive — before you decide.
Consent traps and marketing red flags
These are not small details. They are often where patients lose choice, time to reflect, or realistic expectations.
Consent traps
- Prescribing antibiotics for a clearly viral sore throat to 'be safe'.
- Not explaining how modest the benefit of antibiotics is, even when bacteria are likely.
- Recommending tonsil surgery without a documented count of genuine, disabling episodes.
- Not giving clear warning signs for the rare child who becomes seriously unwell.
Marketing red flags
- Routine antibiotics or private prescriptions offered for every sore throat.
- Tonsillectomy promoted as a quick fix without discussing watchful waiting and bleeding risk.
- Throat swabs or tests sold when the result would not change management.
- Claims that removing the tonsils will stop a child getting any sore throats at all.
Choosing a specialist safely
- Check the specialist is on the GMC Specialist Register for this area.
- Make sure they work at a CQC-registered service, and look for membership of the relevant Royal College or professional body.
- You're entitled to time to consider and to have your questions answered before you agree — the specialist who looks after you should explain it, not a salesperson.
- Be wary of pressure: time-limited offers or deposits taken before you've had time to think are red flags, not bargains.
- You're entitled to your total cost in writing — including any follow-up — before you decide.
Questions to ask your medical professional
Take this to your consultation. A good specialist will welcome every one of these.
- Is my child's sore throat likely viral or bacterial, and what is their score?
- Do they need antibiotics now, a back-up prescription, or neither?
- What pain relief and how much fluid should I aim for?
- How many documented episodes would make tonsil surgery worth considering?
- What are the risks and benefits of removing the tonsils for my child specifically?
- What warning signs mean I should seek urgent help rather than wait?
- Are you on the GMC Specialist Register for this area, and which Royal College or professional body are you a member of?
- Will you be the specialist who carries out my test, and who looks after me afterwards?
- What are the risks for someone like me, and how often do your own patients have a problem or need it repeated or redone?
- What does a realistic result look like — and what can this test not achieve?
- What are my options, including waiting, doing nothing for now, or choosing a different approach?
- Can I have written information, results and aftercare instructions in a format I can use, including any accessibility or communication support I need?
- What is the total cost in writing, including any follow-ups, and how much time do I have to decide?
Frequently asked questions
Does my child need antibiotics for tonsillitis?
How long should a sore throat last?
What is a 'back-up' antibiotic prescription?
When are tonsils taken out?
Is tonsil surgery risky?
Could it be scarlet fever or something needing urgent care?
Where do I get urgent advice out of hours if my child gets worse?
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How we made this page
Medically reviewed by a GMC-registered consultant. Written in plain English, checked against NHS, NICE, GMC and relevant Royal College / specialist-society guidance, and kept under review. No clinic paid to appear on this page, and we publish no pricing. This is general information to help you prepare — it is not a substitute for advice from your own clinician. How we review our guides →
Source hierarchy: UK regulator and NHS/NICE guidance first, then relevant Royal College or specialist-society guidance, then peer-reviewed evidence for procedure-specific figures where available.
Sources & standards: NICE NG84 — Sore throat (acute): antimicrobial prescribing NHS — Sore throat NHS — Tonsillitis ENT UK — Tonsillectomy commissioning guide Return to theatre for post-tonsillectomy haemorrhage in children (HES, RCS England) NHS — Tonsillectomy nidirect — Urgent and emergency care services (Northern Ireland) nidirect — GP out-of-hours service (Northern Ireland)
Reviews reflect patients' experience of care, not clinical outcomes. For procedure volumes and outcome data see PHIN.
Last medically reviewed 2026-09-21. Spotted something wrong or out of date? Report an error in this guide.
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