DDx
- Acute otitis media
- Otitis externa
- Chronic otitis media
- Auditory (eustachian) tube dysfunction
- Mastoiditis
- Referred pain: sinusitis, tooth pain, cancer of upper aerodigestive tract
- Temporomandibular joint syndrome
- Trauma or barotrauma
- Foreign body
- Osteoma
- Cholesteatoma
- Ramsay-Hunt syndrome (herpes zoster oticus)
- Acoustic neuroma
- Bullous myringitis
- Glossopharyngeal neuralgia
