What Causes Red Bumps On The Arm And Stomach?

I have all of a sudden noticed red raised bumps on my stomach back and few on my arm. I do work out and thought it may be from sweating. They do not itch, but it is unsightly. I have had a fungus on my stomach in the past which I put on a cream from the doctor. I no longer have insurance and was wondering if this sounds like the fungus has recurred and if so if there is anything I can put on it to clear it without going to the doctor.