Asthma is a disease of the respiratory tract, which manifests itself as paroxysms of breathlessness, a feeling of tightness in the chest resulting from narrowing of the airways. An allergic reaction, an emotional upset, anxiety, occasional physical stress or a cold air triggers most of the asthma attacks.

Breathlessness, feeling of tightness in the chest and productive cough are the common signs and symptoms of Asthma.
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