Pain started in armpit, woke me up , felt like razor burn and muscle cramp. It went to the right shoulder blade area, with sharp pain. Then it went to the front right breast. The pain in the skin was sensitive to touch. No evidence of a rash, a little irritation, but no blisters. Hard to get comfortable, not easy to sleep. It does hurt if I breathe deeply. I do have a stiff neck. Last night it did go across the back to the left side with symptoms the same as the right