Three weeks ago developed red bumpy rash on arm and when I awoke in the morning had more on arms, back, thighs, lower legs. Dr. thought it was med. reaction to Hydrochlorot which has a little sulfa in it. I cannot take sulfa drugs but have used this med. for years. He gave me dose 6 day dose pack of a prendesone med thich seemed to dry it up a bit. Few days later, more and more red bumpy rash spots. Went to dermatologist. Waiting for biopsy result. She thinks Sweet's Syndrome. It can be caused by medicine, another illiness I am not aware of or resulting from prior infection( I had pneumonia last Nov.) Will know more in two weeks. Get chills in evening, no fever, have muscle pains all over.