I have bumps that start like welts and are very itchy. They then "calm down" & i can tell one may actually be several bumps. They then blister and scab. They started on my arm, switched to other arm, did the same with the back of my neck, now on my side/hip and now today a few on my face! The urgent care nurse said possible herpes zoster, like chicken pox or shingles, but not exactly the same. For a more specialized opinion, she referred me to a dermatologist (i go tomorrow). Does anyone know what can cause this or know anything about what I've described?