Sino-bronchial reflex, asthma and sinusitis.

Sinusitis should be suspected in cases of chronic, difficult to control asthma or other pulmonary diseases. Appropriate measures to diagnose and treat sinus disease are listed, and an upright Waters roentgenogram may be all that is required for diagnosis. A true sino-bronchial reflex is proposed in these patients. Nasal receptors and reflexes are effective in the physiology of the nose, and in many cases, the diagnosis and treatment of rhinitis and sinusitis results in the improvement of various chronic pulmonary conditions.