What is asthma?

Asthma is a chronic inflammatory condition with repeated episodes (or attacks) of reversible narrowing of the small airways (bronchi) of the lung that respond to bronchodilators. Children with asthma have ‘hyperactive airways’, i.e. their small airways become narrow in response to a number of factors. Asthma usually presents as repeated acute attacks. Each attack lasts hours to days. While some children only have a few attacks a year others are rarely free from asthma. If acute asthma is not controlled, the asthma may become persistent.

Asthma presents with repeated episodes of airway narrowing.

Asthma is an inflammatory disease. The inflammation leads to airway narrowing. To control asthma the inflammation must be treated.

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