Health condition
Childhood asthma
Recurrent cough, wheeze and breathlessness in your child - especially at night, with colds or on exercise - may be asthma; the right diagnosis and a properly taught inhaler routine transform daily life.
Why trust this guide
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Editorial team
Written by our editorial team from the UK sources listed on each page.
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Sourced from guidance
Checked against current NHS and UK specialist society guidance at the time of review.
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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.
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Typical pattern: recurrent wheeze, night-time cough and symptoms triggered by colds, exercise, allergens or cold air
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Not all wheeze in young children is asthma - many preschool wheezers improve with age
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Specialist: a consultant paediatric respiratory physician; older children can do spirometry and FeNO testing to support the diagnosis
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Most children are well controlled on low-dose preventer inhalers with good technique - frequent reliever use signals under-treatment
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
Asthma is the most common long-term condition of childhood: sensitive, inflamed airways narrow in response to triggers, causing wheeze, cough, chest tightness and breathlessness. In your child you may notice night waking with coughing, wheeze with every cold, or them stopping during games while friends run on. Diagnosis in young children is genuinely tricky because viral wheeze without asthma is common in the preschool years.
Diagnosis and treatment routes
Specialist assessment pieces together the pattern of symptoms, examination, and - in children old enough - objective tests such as spirometry with reversibility and exhaled nitric oxide, then builds a written asthma plan around a daily preventer inhaler, correct spacer technique and clear instructions for flare-ups. Regular review matters: needing the blue reliever more than a couple of times a week, or any hospital attendance, means the plan needs strengthening. 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 Childhood asthma.
Quick, plain-English answers to what people ask us most.
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What is childhood asthma?
Childhood asthma is a common chronic condition in which the airways become inflamed and narrowed, causing episodes of wheezing, coughing, chest tightness and breathlessness. It is one of the most common long-term conditions in children, and symptoms can vary considerably in frequency and severity between children. Many children see symptoms improve as they get older, though some continue to have asthma into adulthood.
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What causes childhood asthma?
It results from a combination of genetic predisposition and environmental factors, including allergens (such as house dust mites, pet fur or pollen), respiratory infections, tobacco smoke exposure, and air pollution. A family history of asthma, eczema or hay fever increases the likelihood of a child developing asthma. Identifying and reducing exposure to specific triggers can help manage the condition.
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What are the symptoms of childhood asthma?
Common symptoms include wheezing (a whistling sound when breathing), persistent coughing (particularly at night or with exercise), chest tightness, and breathlessness, often triggered by specific factors such as colds, exercise, cold air, or allergen exposure. Symptoms can vary from mild and occasional to more frequent and significant. A clear pattern of triggers can help support the diagnosis and guide management.
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Is childhood asthma dangerous?
Most children with well-managed asthma live full, active lives without significant limitation, but poorly controlled asthma can lead to serious asthma attacks, which can be life-threatening if severe and not treated promptly. This is why regular monitoring and appropriate use of preventer inhalers, alongside a clear action plan for worsening symptoms, are so important. Good long-term control significantly reduces the risk of serious attacks.
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Can childhood asthma be cured or will my child grow out of it?
There is no outright cure, but many children experience significant improvement or even resolution of symptoms as they get older, particularly if asthma was mild. Others continue to have some degree of asthma into adulthood, though it can often be well controlled with appropriate treatment. Regular review helps track how the condition is evolving over time and adjust management accordingly.
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How is childhood asthma treated?
Treatment typically includes a reliever inhaler for quick relief of symptoms, and, for children with more frequent symptoms, a regular preventer inhaler to reduce airway inflammation and prevent attacks. An individualised asthma action plan helps parents and children recognise and respond to worsening symptoms. Regular review with a GP or asthma nurse helps ensure treatment remains well tailored as the child grows.
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When should I see a doctor about my child's symptoms?
See a doctor if your child has recurrent wheezing, coughing or breathlessness, particularly with identifiable triggers, and seek urgent care if breathing difficulty is severe or not responding to their usual reliever inhaler. Routine asthma assessment is usually available with a GP within a few days on the NHS, or sooner with a private paediatric consultation if preferred.