Ramsay Hunt syndrome is caused by the virus that causes chickenpox. After chickenpox clears, the virus lies dormant in nerves. Years later, it may reactivate. If the virus reactivates and affects the facial nerve, then it results in Ramsay Hunt syndrome. Complications include permanent facial muscle weakness and deafness. Symptoms include Ear pain, Hearing loss, tinnitus, Difficulty closing one eye, A sensation of spinning or moving (vertigo), dry eyes.