Any hearing or vision changes? Any rash? Any trauma history? If 耳鼻喉醫生is good, We can rule out: Acute Otitis Media, Otitis Externa, Chronic otitis media, Auditory tube dysfunction, Trauma, Foreign body, Osteoma, Cholesteatoma, Herpes zoster oticus (if no rash),Bullous myringitis.
Now there are following possibility:
Mastoiditis, the bone behind the ear is painful, usually have ear infection,
Referred pain:like from Sinusitis, tooth pain, cancer of upper aerodigestive tract,
Temporomandicular joint symdrome, Acoustic neuroma,Glosssopharyngeal neuralgia.
He should see Doctor again if pain persists!
