Ramsay Hunt syndrome (RHS) is a rare neurological disorder caused by the reactivation of the varicella-zoster virus (VZV) — the same virus that causes chickenpox and shingles. It specifically affects the facial nerve near the ear, leading to a distinctive set of symptoms.

Key Symptoms

The hallmark of Ramsay Hunt syndrome is a painful rash inside the ear, on the eardrum, or on the tongue, accompanied by facial paralysis on the same side of the face. Other common symptoms include hearing loss, tinnitus (ringing in the ears), vertigo, and dryness of the eyes and mouth. The facial paralysis can be sudden and is often mistaken for Bell's palsy, though RHS is typically more severe.

Causes and Risk Factors

After a person recovers from chickenpox, VZV lies dormant in nerve tissues. Later in life, the virus can reactivate as shingles. When reactivation occurs in the geniculate ganglion of the facial nerve, it results in Ramsay Hunt syndrome. Risk factors include advancing age (especially over 60), a weakened immune system, and stress. The condition is not contagious, but a person with an active rash can transmit chickenpox to someone who has never had the virus or the vaccine.

Diagnosis

Diagnosis is primarily clinical, based on the presence of the characteristic rash and facial paralysis. Laboratory tests such as polymerase chain reaction (PCR) of the vesicular fluid or blood can confirm the presence of VZV. Early diagnosis is critical because prompt treatment improves the chances of recovery and reduces the risk of permanent hearing loss and facial nerve damage.

Treatment and Prognosis

The standard treatment involves a combination of antiviral treatment (such as acyclovir or valacyclovir) and corticosteroids (like prednisone). Starting antiviral treatment within 72 hours of symptom onset significantly improves outcomes. Pain management, physical therapy for facial muscles, and eye protection (due to incomplete eyelid closure) are also important. Prognosis varies: with early treatment, about 70% of patients achieve satisfactory recovery, but some may experience residual facial paralysis, hearing loss, or chronic pain.

Prevention

The best prevention is the shingles vaccine (Shingrix), which is recommended for adults 50 and older and for immunocompromised individuals. Vaccination dramatically reduces the risk of shingles and therefore also lowers the chance of developing Ramsay Hunt syndrome.

In summary, Ramsay Hunt syndrome is a serious complication of shingles that demands rapid recognition and antiviral treatment to minimize long-term nerve damage, facial paralysis, and hearing loss.