Herpes zoster Herpes zoster is commonly called shingles. It is caused by the same virus that causes chickenpox. It looks like small red blisters that grow together in groups on the skin. The skin turns red and painful. Shingles can be very painful if it is not treated, and can cover entire sides of the body.
Shingles is treated with prescription medications.
The treatment works only when the virus is active, and should be started within 24 hours after the symptoms begin. These symptoms include fever, skin pain, feeling tired, and blisters on the skin. The drug must be taken every day until the blisters heal. If this is not done, shingles can turn into a life-threatening disease. It is important to see a doctor as soon as possible if symptoms of shingles develop.