Herpes zoster Herpes zoster occurs once in a lifetime mostly after middle age characterised by rashes with pain in one side of body part depending on dermatome involvement. It is just recurrence of herpes zoster virus infection lying dormant in dorsal root ganglia of spinal cord. Timely treatment with a qualified dermatologist can get resolution of the condition as well as pain-free life. If not treated within few days, patient develops post herpetic neuralgia which is difficult as well as time consuming to treat. Moral: don't wait for self resolution if u notice rashes with pain on any part of body.