What is a complication of herpes zoster?

Postherpetic neuralgia is a recognized complication of herpes zoster, commonly known as shingles. This condition occurs due to nerve damage from the varicella-zoster virus, which causes the initial infection. Even after the shingles rash has healed, some individuals may experience persistent pain, which can be severe and debilitating. This pain arises from the overactive nerve signals as a result of the viral infection causing inflammation and damage to the nerves.

Other potential complications associated with herpes zoster can include bacterial infections and, in rare cases, pneumonia related to complications from the disease. However, these are not as commonly acknowledged as postherpetic neuralgia, which directly affects the quality of life for many individuals after the initial shingles episode. Reye syndrome, on the other hand, is unrelated to herpes zoster; it specifically occurs in children following viral infections and the use of salicylate medications, such as aspirin. Thus, postherpetic neuralgia stands out as the most direct and common complication following herpes zoster.