Wheezing may persist for weeks after an acute bronchitis episode. Beta blockers Physical examination. Hyperventilation, use of accessory muscles of respiration, audible wheezing, and a prolonged expiratory phase are common. Increased nasal secretions or congestion, polyps, and Measurement of lung function. Patients should avoid opening windows and using unfiltered window fans.
Inhaled corticosteroids are first-line agents in patients who require daily asthma therapy.
Zileuton is a 5-lipoxygenase inhibitor. Zafirlukast is a leukotriene receptor antagonist. Montelukast is similar to zafirlukast but is taken only once per day at night. Zafirlukast must be taken on an empty stomach. Long-acting beta 2 agonists relax bronchial smooth muscle.