Cough may be prolonged. Serology is available. Erythromycin vs. clarithromycin. Environmental tobacco smoke. Usually follows a typical URI with cough.
Quality is loud, barking or honking.
For example, the patient can carry on a conversation, coughing only between statements. May be so severe as to induce rib fractures. Patient will produce cough on command. Patient manifests lack of concern regarding cough, la belle indifference. Cough often prohibits school attendance.