Health condition
Chronic cough in children
A cough that has lasted more than four weeks in your child deserves proper assessment rather than repeated courses of antibiotics: the common causes - asthma, post-viral cough, bacterial bronchitis - are all very treatable.
Why trust this guide
- 01
Editorial team
Written by our editorial team from the UK sources listed on each page.
- 02
Sourced from guidance
Checked against current NHS and UK specialist society guidance at the time of review.
- 03
Current for 2026
Reviewed on 2026-09-27 with the next review scheduled for 2027-09-27.
Key facts
The essentials at a glance.
The symptoms to recognise, when to seek help, which specialist to see, and what treatment usually involves.
-
More than four weeks of daily coughing counts as chronic in a child and warrants assessment
-
A wet-sounding cough persisting for weeks may be protracted bacterial bronchitis, which responds to a prolonged antibiotic course
-
Red flags: coughing from the first weeks of life, choking episodes, wet cough with poor growth, or coughing blood - these need specialist referral
-
Specialist: a consultant paediatric respiratory physician; assessment may include a chest X-ray and spirometry in older children
Understanding the condition
What it is and what happens next.
What causes it, how it is diagnosed, and the treatment routes available in the UK.
What it is and how it feels
All children cough with colds, and a normal child can have many respiratory infections a year - the run-together effect can feel like one endless cough. A genuinely continuous cough lasting beyond four weeks is different, and its character matters: a dry cough with wheeze or night symptoms points towards asthma, a persistently wet or rattly cough suggests protracted bacterial bronchitis, and a cough that started suddenly mid-play raises the question of an inhaled foreign body.
Diagnosis and treatment routes
Assessment includes a careful history of how the cough started and behaves, examination, usually a chest X-ray, and asthma tests in children old enough to blow into the machines. Treatment then targets the cause - inhalers for asthma, a two-to-four-week antibiotic course for protracted bacterial bronchitis, or bronchoscopy where a foreign body or rarer condition is suspected - rather than repeated short antibiotic courses that never quite work. In many parts of the UK, routine NHS referrals for this kind of problem currently take 20-45+ weeks, whereas an initial appointment with a private consultant is typically available within around two weeks.
Seeing a specialist
Who to see, and how quickly you can be seen.
The specialist for this condition is usually a consultant paediatric respiratory physician. Your GP can refer you on the NHS, or you can arrange a private consultation directly.
A quiet reminder
This guide is for information, not medical advice.
Your GP knows your history and can tell you which parts apply to you. If in doubt, see them - and seek urgent care for any of the emergency symptoms described above.
Frequently asked
Common questions about Chronic cough in children.
Quick, plain-English answers to what people ask us most.
-
What counts as chronic cough in children?
In children, a cough lasting four weeks or longer is generally considered chronic and warrants proper assessment, since this is beyond the typical duration expected for a common cold or viral infection. It has a range of possible causes, some more common in children than in adults. Identifying the specific pattern and any associated symptoms helps narrow down the likely cause.
-
What are common causes of chronic cough in children?
Common causes include asthma, recurrent respiratory infections, post-nasal drip from allergies or chronic rhinitis, and, less commonly, gastro-oesophageal reflux or an inhaled foreign object (particularly in younger children with a sudden-onset cough). Passive smoke exposure can also contribute to or worsen chronic cough in children. Identifying the underlying cause allows targeted rather than generic treatment.
-
Is chronic cough in children usually serious?
Most cases are due to relatively common and treatable causes such as asthma or allergies rather than anything more serious, though certain features (such as a cough with feeding difficulties in infants, weight loss, or a very specific sudden-onset cough suggesting an inhaled object) warrant more urgent assessment. A doctor can help distinguish more concerning presentations from the more common, less serious causes. Most children with chronic cough recover well once the underlying cause is identified and treated.
-
How is chronic cough in children investigated?
Investigation typically starts with a detailed history and examination, sometimes followed by a chest X-ray, lung function testing (in older children who can perform it reliably), or allergy testing depending on the suspected cause. In younger children or if a foreign body is suspected, more specific investigations may be needed. The approach is tailored to the child's age and the specific pattern of symptoms.
-
How is chronic cough in children treated?
Treatment is directed at the underlying cause once identified — for example, asthma inhalers for asthma, allergy treatment for post-nasal drip, or reflux treatment if that is the cause. Simply suppressing the cough with over-the-counter medicines is generally not recommended for children, as it does not address the underlying issue and cough suppressants have limited evidence of benefit and potential risks in this age group. Getting an accurate diagnosis allows more effective, targeted treatment.
-
When should I see a doctor?
See a doctor if your child's cough persists for more than four weeks, or sooner if there is difficulty breathing, feeding problems, weight loss, or a sudden-onset cough that might suggest an inhaled object. A GP appointment is usually appropriate for initial assessment, typically available within a few days on the NHS, or sooner privately if quicker assessment is preferred.