Pneumomediastinum is a rare disease. Most cases of pneumomediastinum occur due to rupture of alveoli, or rupture of the trachea - bronchus, esophagus.

A paroxysmal cough involves frequent, severe coughing fits that make it difficult to breathe. Coughing is an automatic reflex that helps the body clear out extra mucus, bacteria, and other foreign substances. This article explores the causes of a paroxysmal cough, how to treat it, how you can prevent it, and when you should see a doctor.