What is shingles?
Shingles is a painful skin rash. It is caused by the varicella zoster virus. Shingles usually appears in a band, a strip, or a small area on one side of the face or body. It is also called herpes zoster.
Shingles is most common in older adults and people who have weak immune systems because of stress, injury, certain medicines, or other reasons. Most people who get shingles will get better and will not get it again.
What causes shingles?
Shingles occurs when the virus that causes chickenpox starts up again in your body. After you get better from chickenpox, the virus "sleeps" (is dormant) in your nerve roots. In some people, it stays dormant forever. In others, the virus "wakes up" when disease, stress, or aging weakens the immune system. Some medicines may trigger the virus to wake up and cause a shingles rash. It is not clear why this happens. But after the virus becomes active again, it can only cause shingles, not chickenpox.
You can't catch shingles from someone else who has shingles. But there is a small chance that a person with a shingles rash can spread the virus to another person who hasn't had chickenpox and who hasn't gotten the chickenpox vaccine.
What are the symptoms?
Later, you may feel itching, tingling, or pain in a certain area. That's where a band, strip, or small area of rash may occur a few days later. The rash turns into clusters of blisters. The blisters fill with fluid and then crust over. It takes 2 to 4 weeks for the blisters to heal, and they may leave scars. Some people only get a mild rash, and some do not get a rash at all.
It's possible that you could also feel dizzy or weak, or you could have long-term pain or a rash on your face, changes in your vision, changes in how well you can think, or a rash that spreads. If you have any of these problems from shingles, call your doctor right away.
How is shingles treated?
Shingles is treated with medicines. These medicines include antiviral medicines and medicines for pain.
Starting antiviral medicine right away can help your rash heal faster and be less painful. So if you think you may have shingles, see your doctor right away.
Good home care also can help you feel better faster. Take care of any skin sores, and keep them clean. Take your medicines as directed. If you are bothered by pain, tell your doctor. He or she may write a prescription for pain medicine or suggest an over-the-counter pain medicine.
Who gets shingles?
Anyone who has had chickenpox can get shingles. You have a greater chance of getting shingles if you are older than 50 or if you have a weak immune system.
There is a shingles vaccine for people who are 50 years and older. This lowers your chances of getting shingles and prevents long-term pain that can occur after shingles. And if you do get shingles, having the vaccine makes it more likely that you will have less pain and your rash will clear up more quickly.
Frequently Asked Questions
eMedicineHealth Medical Reference from Healthwise
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