What is Ramsay Hunt syndrome?
Ramsay Hunt syndrome, also known as herpes zoster oticus, is caused by the same virus that causes chickenpox and shingles (the varicella-zoster virus). Varicella-zoster virus can remain dormant in sensory nerves if you previously had chickenpox. Shingles is a reactivation of the varicella-zoster virus in those nerves. Shingles commonly causes painful blisters (vesicles) on the torso or limbs but also can affect the eyes or ears. Ramsay Hunt syndrome is when a shingles outbreak affects the face and ears.
The Opens in new tab National Institute for Neurological Disorders and Stroke describes Ramsay Hunt syndrome as causing not only facial weakness or paralysis, but also a painful red rash that appears on, in and around one ear (including the eardrum, ear canal and earlobe) accompanied by fluid-filled blisters, ear and mouth pain (tongue, roof of mouth) and vertigo.
Ramsay Hunt syndrome is also very rare. According to the Opens in new tab National Organization for Rare Disorders, only 5 out of every 100,000 people develop Ramsay Hunt syndrome each year in the United States, affecting both men and women equally. And in most cases it affects older adults, especially those over 60.
To diagnose Ramsay Hunt syndrome, Alex Benjamin, MD, Chief Infection Control and Prevention Officer, Lehigh Valley Health Network, says it starts with the patient’s description of symptoms. “Diagnosis is made by gathering history from the patient and looking for the typical distribution of the rash/blisters. In some cases, testing the fluid from an unruptured blister can confirm the presence of varicella-zoster virus,” he says.
Neurologist Jonathan Cheponis, MD, with Lehigh Valley Fleming Neuroscience Institute, says Ramsay Hunt syndrome resembles Bell’s palsy. “Bell’s palsy is a much more common cause of one-sided facial weakness, so identifying the typical rash and other signs of the varicella-zoster virus is crucial to make the correct diagnosis.”