After you've had chickenpox Chickenpox Chickenpox is a viral infection that's more common in children than in adults. Chickenpox causes fever and an itchy rash of small, raised blisters or crusted spots Chickenpox spreads easily... read more , the virus that caused it stays in your body all your life. If the virus becomes active again, you get shingles.
What is shingles?
Shingles is a viral infection Overview of Viral Infections A virus is a tiny living organism. Viruses are so small they can be seen only with the most powerful microscopes. That's why they're called microorganisms (micro means very small). Other common... read more that causes a painful rash of fluid-filled blisters.
If the chickenpox virus becomes active, it travels to your skin where it causes painful sores
Doctors don’t know what causes the virus to become active again, but it sometimes happens when medicines or other illnesses weaken your immune system Overview of the Immune System The immune system is your body's defense system. It helps protect you from illness and infection. The immune system's job is to attack things that don’t belong in your body, including: Germs... read more
Adults ages 50 and older and people with a weakened immune system are more likely to get shingles
You usually get shingles only once
Medicines can’t cure shingles, but antivirals (medicines that stop viruses) and pain medicine may help you feel better
Go to a doctor right away if you think you have shingles, because treatment works best when started early.
What causes shingles?
After you get over chickenpox, the virus remains in your nerve roots, near your spine. Sometimes the virus becomes active again and causes a rash (shingles). The rash develops on the part of your skin connected to the infected nerve root.
Because chickenpox is caused by the herpes zoster virus, shingles is sometimes called "zoster."
What are the symptoms of shingles?
Shingles may start with pain, tingling, or itching in a small area of skin on one side of your body. Often this is your chest or belly area. After a few days, symptoms include:
Small, fluid-filled blisters in one area of your body
Painful areas that are sensitive when touched
Sometimes, headache, fever, and feeling tired
Part of a nerve in the face (facial nerve) leading to the eye and ear may also be affected by the virus causing shingles. The infection may cause pain and blisters around the eye and sometimes affects how well you can see. If the ear is affected, it may cause pain and difficulty hearing. Sometimes infection of the facial nerve will stop the muscles in your face from moving.
About 5 days after the blisters form:
The blisters will dry, form a scab, and may leave scars on your skin—until the scabs form you should stay away from other people to avoid spreading the virus
You may get a bacterial infection from scratching the blisters or from having blisters near your eyes, nose, or ears
You may have lasting pain after the rash disappears (postherpetic neuralgia Postherpetic Neuralgia After you've had chickenpox, the virus that caused it stays in your body all your life. If the virus becomes active again, you get shingles. Shingles is a painful rash of fluid-filled blisters... read more )—this happens to about 1 in 10 people
How can doctors tell if I have shingles?
Doctors can tell you have shingles by asking about your symptoms and examining your rash. Sometimes they'll take a scraping of the blister or a sample of the fluid inside the blister to examine in the lab.
How do doctors treat shingles?
Prescribe antiviral medicine to lessen your symptoms—these medicines work best when started early, before your blisters form
Prescribe pain medicine
Have you put a wet cloth on your rash to lessen pain and itching
Tell you to avoid scratching the blisters to prevent infection
Send you to an eye or ear doctor if your shingles is near your eye or ear
How can I prevent shingles?
Vaccines Overview of Immunization You are immune to an infection when your body's natural defenses have learned how to fight it off. You can become immune naturally after you're exposed to germs such as bacteria or viruses.... read more can prevent chickenpox and shingles.
Get the chickenpox vaccine Varicella Vaccine The varicella vaccine helps protect against chickenpox (varicella), a very contagious infection caused by the varicella-zoster virus. It causes an itchy rash that looks like small blisters with... read more :
Most children get 2 chickenpox shots as part of their routine set of vaccines—at age 12 to 15 months and again at age 4 to 6 years
If you’re a teen or adult who hasn’t had chickenpox or the vaccine, ask your doctor about getting the vaccine
Get the shingles vaccine Herpes Zoster Vaccine There are two herpes zoster vaccines. The newer herpes zoster vaccine is preferred over the older herpes zoster vaccine because it provides better and longer-lasting protection. The newer vaccine... read more :
Most people age 50 or older should get a shingles vaccine, even if they've already had chickenpox or shingles
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