This started suddenly about half an hour ago, with odd localized heat on my upper chest just under my neck, and now I have red hot rashes on the outer edges of both elbows and the underside of one forearm but not the other. The rashes both "feel" hot, and are hot to the touch. They aren't raised at all, and don't really hurt or itch at all. Any thoughts? I'm on a couple antibiotics but have taken them for 5 weeks without any problems like this. Also, the most recent dose was about 3 hours prior to the rash starting. I'm taking my usual supplements (NAC, fish oil, Yohimbe, B-complex, low dose C, Magnesium) and the food I ate was a combination of noodles that I made two days ago, and left-over take out ribs, both things which I have eating the past two days in a row. In the 5 minutes spent writing this, the rash has spread to the top of my left forearm. It looks a bit streaky in places, versus clumpy.