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Shingles, or herpes zoster, is a viral infection that causes a painful rash and can occur in anyone that has had chickenpox. They're caused by the same virus, the varicella zoster virus (VZV), which remains inactive in the body for life after recovery from chickenpox. It can reactivate years or even decades later in anyone who has had chickenpox, causing shingles. Medical professionals are still uncertain why this happens.
Shingles is rarely talked about, but surprisingly common:
Even children can get shingles if they've had chickenpox previously, but the risk of getting it increases as you age. Other risk factors include:
Most people who have an episode of shingles only have one in their lifetime, but second or even third episodes are possible.
Shingles is characterized by a painful rash that develops on one side of the face or body, most commonly in a single stripe on the left or right side of the body. It can also occur on one side of the face, where it can affect the eye and cause temporary loss of vision.
Shingles usually occurs in distinct stages:
Complications may occur as a result of shingles, largely dependent on where the virus has spread. The most common complication is postherpetic neuralgia (PHN), which is severe pain in the rash's area long after the rash has cleared up. This usually resolves after weeks or months but can sometimes last for years. It occurs in 10-13% of shingles patients and almost always in patients above 40 years old, with incidence rates increasing with age.
You cannot catch shingles from someone who has it, but a shingles patient can transfer chickenpox to someone who has never been infected with it or received the chickenpox vaccine. To prevent spreading the virus:
Prevention is possible through the shingles vaccine Shingrix, which the CDC recommends to adults over 50.
Treatment is about reducing the severity and length of the disease, as well as managing its effects. Options include: