Otitis externa. Management in the primary care office.

Otitis externa is a widespread problem that is most commonly caused by Pseudomonas aeruginosa. Pain, ear discharge, and edema of the ear canal are the main manifestations. The presence of granulation tissue is an ominous sign that usually indicates necrotizing otitis externa or even a neoplastic process. It is important for primary care physicians to be familiar with methods of ear cleaning and use of topical medications for otitis externa. It is equally vital to be aware of the importance of a timely referral to an otolaryngologist when a serious underlying cause is suspected.