Asthma is a lung condition that can make your airways swell, narrow, and fill with mucus. "This causes recurrent episodes ... and other people having chronic severe symptoms," says Dr.

Asthma is a heterogeneous disease more ... processes affect the bronchial milieu and predispose to acute and occasionally severe clinical manifestations. The complexity underlying these episodes ...

These episodes of severe symptoms ... “It’s a condition where acute asthma gets worse with time and becomes resistant to the usual line of management. The causes of chronic asthma include ...

Bronchitis can be acute (sudden and short-lasting), usually ... determine if you have COPD or another condition like asthma. Emphysema causes damage to the lungs’ air sacs, called alveoli.