I have this rash that seemed to appear on my inner thighs overnight, and I noticed for the first time Tuesday AM. It didn't itch at all, but it was very surprising to see it there. Now it's Saturday, and the rash has gotten deeper in color and has spread down my legs almost to my ankles, and has also spread to other parts on my upper leg, although very lightly. This rash has not itched at all. The rash was not raised bumps at first, but it has progressed to where it is now raised and they are bright red and small individual bumps. I have not changed my diet at home, or detergents, or soaps, have not come in contact with any chemicals. The only thing that is different is that I started a new job on Monday, then the rash appeared the very next day. I work in an office, with a desk and a chair. I'm not showing any other symptoms, no fever, no headache, no joint pain. All I have is this "rash" for lack of a better term. Can anyone tell me what this is? Or what may have caused it? Thanks