DEAR DOCTOR K: I've been diagnosed with shingles. What can I take for the pain?
DEAR READER: Shingles, also known as herpes zoster or just zoster, is caused by the varicella-zoster virus. It is the same virus that causes chickenpox. Once you have had chickenpox, the varicella-zoster virus remains in your body's nerve tissues. It is inactive, but it can be reactivated later in life. This causes shingles.