Inflammation of the labyrinth. The condition is almost always caused by bacterial or viral infection. Viral labyrinthitis may develop during illnesses such as influenza. Bacterial labyrinthitis is commonly a complication of otitis media. The main symptom is vertigo, sometimes with nausea, vomiting, nystagmus, tinnitus, and hearing loss. Viral labyrinthitis clears up on its own, but symptoms are relieved by antihistamine drugs. Immediate treatment with antibiotic drugs is needed for bacterial labyrinthitis, otherwise permanent deafness or meningitis may result.


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