RT Book, Section A1 Jauch, Edward C. A1 Hall, Gregory A1 Knoop, Kevin J. A2 Knoop, Kevin J. A2 Stack, Lawrence B. A2 Storrow, Alan B. A2 Thurman, R. Jason SR Print(0) ID 1181040078 T1 Herpes Zoster Oticus (Ramsay Hunt Syndrome) T2 The Atlas of Emergency Medicine, 5e YR 2021 FD 2021 PB McGraw-Hill PP New York, NY SN 9781260134940 LK accessemergencymedicine.mhmedical.com/content.aspx?aid=1181040078 RD 2024/04/19 AB Herpes zoster oticus (HZO), or Ramsay Hunt syndrome, is the second most common cause of facial paralysis, representing 3% to 12% of cases. The syndrome consists of facial and neck pain, auditory symptoms, and facial palsy associated with the reactivation of latent varicella-zoster virus in the facial nerve and geniculate ganglion. Patients first note pruritus, followed by pain out of proportion to the physical examination over the face and ear. Patients may also experience vertigo, hearing loss from involvement of the 8th cranial nerve, tinnitus, rapid onset of facial paralysis, decrease in salivation, loss of taste sensation over the posterolateral tongue, and vesicles on the ear, EAC, and face.