What is shingles?

Herpes Zoster . Infection of the nerve and skin usually as a reactivation of the chicken pox virus.
Chicken Pox. Shingles is a reactivation of the virus that causes chicken pox. After chicken pox resolves, the virus hides on in a nerve and then may come back out, causing shingles. Fyi...Chicken pox virus is a form of herpes virus, but not one of the ones caused by "misbehaving". Shingles is a associated with rash and pain.