Shingles, sometimes called herpes zoster, is the reactivation of the varicella-zoster virus that causes chickenpox.

According to the Centers for Disease Control and Prevention (CDC), more than 99 percent Trusted Source of American adults born before 1980 have had chickenpox, but only about 1 in 3 adults develop shingles in their lifetime. The chance for developing shingles increases as you get older.

Shingles typically causes a painful rash on one side of your body or face. The CDC says the rash contains blisters that scab over after 7 to 10 days Trusted Source. Avoiding foods that impair your body’s immune system may help you shorten the duration of your shingles outbreak.
Source: BBC