Seven or 8 months ago I noticed a red spot on my waist. It is slightly raised and slightly bumpy. It has spread to a larger area - maybe the size of a tangerine although not circular. There is also another area near my side that is sort of an oblong circle where the center of the circle is normal skin. I've searched the Internet to see if I could figure out what this could be and have had no luck. This rash is not itchy at all. I've put cortisone create on it and it hasn't helped. Any suggestions on what it could be?