I Have Had An Itchy Red Rash With Small Pimple

I have had an itchy red rash with small pimple like heads on the bumps. I scratch almost to the point of bleeding and sometimes they do. This has been going on since July. Then a month ago, I developed an itchy rash under my breast. This has an odor, as does the rash on my buttocks. I have used Clortrimazole, Hydrocortisone, and talc. I am very hygenic. I am at my witts end with this, what else can I do?