Otological complications of herpes zoster.

Otological complications of varicella-zoster virus (Ramsay Hunt syndrome) include facial paralysis, tinnitus, hearing loss, hyperacusis (dysacousis), vertigo, dysgeusia, and decreased tearing. Cranial nerves V, IX, and X are often affected. Gadolinium-enhanced magnetic resonance imaging demonstrates enhancement of the geniculate ganglion and facial nerve. These manifestations are identical to Bell's palsy but are more severe and carry a graver prognosis. Eight percent of Bell's palsy patients eventually are diagnosed as "zoster sine herpete." A new case of Ramsay Hunt syndrome will occur every 52 minutes, compared to every 10 minutes for a new case of Bell's palsy.