RT Book, Section A1 Kozin, Elliott D. A1 Lustig, Lawrence R. A2 Papadakis, Maxine A. A2 McPhee, Stephen J. A2 Rabow, Michael W. A2 McQuaid, Kenneth R. SR Print(0) ID 1193145177 T1 Earache T2 Current Medical Diagnosis & Treatment 2023 YR 2023 FD 2023 PB McGraw-Hill Education PP New York, NY SN 9781264687343 LK accessmedicine.mhmedical.com/content.aspx?aid=1193145177 RD 2024/10/15 AB Earache can be caused by a variety of otologic problems, but otitis externa and acute otitis media are the most common. Otitis externa and acute otitis media may be differentiated using history and physical examination, including pneumatic otoscopy. Pain out of proportion to the physical findings may be due to herpes zoster oticus, especially when vesicles appear in the ear canal or concha. Persistent pain and discharge from the ear suggest osteomyelitis of the skull base or cancer, and patients with these complaints should be referred for specialty evaluation.