Shingles
Shingles is an infection caused by the varicella-zoster virus, which is the same virus that causes chickenpox. Chickenpox can live on in your n...

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What Is Shingles?

Shingles is an infection caused by the varicella-zoster virus, which is the same virus that causes chickenpox. Even after chickenpox is treated, the virus may live on in your nervous tissues for years before reactivating as shingles. Shingles may also be referred to as herpes zoster.

This type of viral infection is characterized by a red skin rash that usually causes pain and burning. Shingles usually appears as a stripe of blisters on one side of the body, typically on the torso, neck, or face.

Most cases of shingles clear up within two to three weeks. Shingles rarely occurs more than once in the same person.

Symptoms of Shingles

The first symptoms of shingles are usually pain and burning. The pain is usually on one side of the body and occurs in small patches. A red rash typically follows.

Rash characteristics include:

  • red patches
  • fluid-filled blisters that break easily
  • a rash that wraps around from the spine to the torso
  • a rash on the face and ears
  • itching

Some people experience symptoms beyond pain and a rash with shingles. These symptoms may include:

  • a fever
  • chills
  • a headache
  • fatigue
  • muscle weakness

Who Is at Risk for Shingles?

Shingles can occur in anyone who has had chickenpox. However, certain factors put people at risk for developing shingles.

Risk factors include:

  • being 60 or older
  • having had chickenpox before the age of 1
  • having diseases that weaken the immune system, such as HIV, AIDS, or cancer
  • having had chemotherapy or radiation treatment
  • taking drugs that weaken the immune system, such as steroids or medications given after an organ transplant

Diagnosing Shingles

Most cases of shingles can be diagnosed with a physical examination of rashes and blisters. Your doctor will also ask questions about your medical history.

Rarely, your doctor may need to test a sample of your skin or the fluid from your blisters. This involves using a sterile swab to collect a sample of tissue or fluid. Samples are then sent to a medical laboratory to confirm the presence of the virus.

Treatments for Shingles

There’s no cure for shingles, but medication may be prescribed to ease symptoms and shorten the length of the infection.

Medications prescribed for shingles may include:

  • anti-viral medications to reduce pain and speed recovery, including acyclovir, valacyclovir, and famciclovir
  • anti-inflammation drugs to ease pain and swelling
  • narcotic medications or analgesics to reduce pain
  • anticonvulsants or tricyclic antidepressants to treat prolonged pain
  • antihistamines to treat itching, such as Benadryl
  • numbing creams, gels, or patches to reduce pain, such as lidocaine
  • Zostrix cream, which can help reduce the risk of a nerve pain called “postherpetic neuralgia” that occurs after recovery from shingles

Home treatment can also help ease your symptoms. Home treatments may include:

  • rest
  • applying cold, wet compresses to the rash to reduce pain
  • applying calamine lotion to reduce itching
  • taking colloidal oatmeal baths to ease pain and itching

Shingles typically clears up within a few weeks and rarely recurs.

Preventing Shingles

Vaccines can help keep you from developing severe shingles symptoms or complications from shingles. All children should receive a chickenpox vaccine, also known as a varicella immunization. Adults who’ve never had chickenpox should also get this vaccine. The immunization doesn’t necessarily mean that you won’t get chickenpox, but it can help reduce the severity of your symptoms.

Adults who are age 60 or older should get a shingles vaccine, also known as the varicella-zoster immunization. This vaccine helps to prevent severe symptoms and complications associated with shingles.

Shingles is contagious. If you become infected, certain steps must be taken to prevent the spread of the infection.

Preventing the spread of shingles includes:

  • keeping your skin clean
  • avoiding contact with people who haven’t had chickenpox or who have weakened immune systems
  • washing any items you touch with boiling water to kill the virus
Written by: Janelle Martel
Edited by:
Medically Reviewed by: [Ljava.lang.Object;@3d2f8587
Published: Jul 2, 2012
Published By: Healthline Networks, Inc.
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