Bronchial hypersensitivity disorder characterized by reversible airway obstruction as a result of mucosal oedema, bronchial construction and excessive secretion of viscid mucus. It is clinically characterized by recurrent paroxysmal attacks of wheezing, dyspnoea, cough and mucoid expectoration. ACUTE ATTACK Clinical Features Symptoms: Onset : Sudden. Starts in late night or early morning. Preceded by sensation¬† […]