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Cough in children
Category: Babies & Children · All children symptoms
What it can feel like
A cough in a child is the protective reflex clearing the airways. Most childhood coughs are viral upper-respiratory infections lasting one to three weeks — longer than most parents expect. The diagnostic weight sits in the sound (barking, whooping, wet), the timing (night, exercise), and the company (fever, breathing effort, feeding).
Possible causes
A symptom can have many causes, and most are not serious. The lists below group conditions this symptom can be associated with — common causes first. They are possibilities to discuss with a clinician, not a diagnosis.
Common causes
Cough in children can be associated with viral colds and croup (barking, worse at night), bronchiolitis in babies (wheezy cough with feeding difficulty), asthma (night and exercise cough, wheeze), and post-nasal drip from lingering catarrh or hay fever.
Other possible causes
Cough in children can also be associated with whooping cough (coughing fits ending in a whoop or vomiting), pneumonia (fever, fast breathing, chest indrawing), an inhaled foreign body (sudden cough in a previously well toddler), reflux, and habitual cough that vanishes in sleep.
Red flags — when to seek help promptly
- Breathing difficulty: ribs showing with breaths, nostril flaring, grunting, blue lips — emergency
- A cough in a baby under 3 months, or any cough with poor feeding and fewer wet nappies
- Coughing fits with whooping, vomiting or turning blue (possible whooping cough)
- A sudden choking cough episode in a toddler (possible inhaled object)
- Cough lasting beyond 3–4 weeks, or cough with weight loss or night sweats
- Coughing blood, even once
What a clinician may do
A clinician will listen to the chest, measure oxygen and breathing rate, look at the throat and ears, and assess hydration and feeding in babies. Most coughs need no tests; chest X-ray follows suspected pneumonia, and persistent cough leads to asthma assessment or referral.
Related guides on MedicalVideos.com
Frequently asked questions
Why do cough medicines not feature in the plan?
Over-the-counter cough medicines have no proven benefit in children and carry real risks in the young; honey (over 12 months) outperforms them in trials for night cough. Time, fluids and antipyretics for comfort are the evidence-based core for viral coughs.
How long is a normal viral cough, honestly?
Longer than feels reasonable: studies of ordinary colds show half of children still coughing at 10 days and a quarter at three weeks, improving steadily. The trajectory matters more than the duration — a cough that is worsening after initial improvement, or static beyond three to four weeks, earns review.
Related symptoms — Babies & Children
Browse the C section of the A–Z list or return to the Symptoms A–Z hub.