What are the Different Types of Asthma?
Asthma is a respiratory condition in which the lung passages become hyper-responsive to different types of stimuli. As a result, the smooth muscle in the wall of the bronchial passages contracts, along with swelling of the mucus membrane lining the airways. This is accompanied by excessive mucus production. All these lead to airway narrowing, resulting in symptoms like breathlessness, wheezing while breathing, coughing and a feeling of tightness in the chest. The severity of these symptoms varies from patient to patient and from day to day.
Unlike chronic lung disease where the lung is permanently damaged, asthma is chiefly characterized by its reversibility. No matter how dangerously severe the symptoms are, in all cases, prompt and effective treatment can open the airways again normal breathing can resume.
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