If you have had chickenpox, you could be at risk of getting shingles. According to the Centers for Disease Control and Prevention (CDC), about one in three people in the United States get shingles at some point. Shingles and the rash it causes can be uncomfortable or even very painful. But what is shingles, and what does it have to do with chickenpox?

Shingles is a viral infection caused by the same virus that causes chickenpox.