Shingles affects about one in three people in the United States at some point in their lifetime. If you have had chickenpox, the virus is dormant in your body and can reactivate to cause shingles. Though it is also called Herpes Zoster, shingles is not caused by the same virus that causes genital herpes. Patients may first experience pain, itching or tingling where the rash will appear. A painful rash then develops, usually on one side of the body or face, possibly accompanied by fever, headache and nausea. Shingles can affect the eye and damage vision. The blisters usually scab over in a week to 10 days and clear up in two to four weeks.