Gday, Ive had a itchy underarm for a couple of weeks now. I asked my husband to have a close look and he couldnt see anything. So I thought maybe a slight alergy of some kind, looked at my soaps, stoped using my deoderant, checked my washing powder etc. Nothing. Diet not changed. About 3 days ago I got like little pimples under my arm and its extreemly itchy but, also really sore to touch. It was geting unbearable today and I looked again, and from my underarm down my side is heaps more, its growing. Its much more painful now and I cannot scratch. I think Ive ruled everything out I can. Could it be shingles? Ive looked at web sights and seen these pictures of shingles, OUCH, mine dont look anywhere near as bas as that.