I have a rash that began on my legs, arms, stomach, and back, so I imagined that it could be a food intoxication, but then it started to disappear from the stomach and back and now it is only on the arms and legs. The rash is internal though, there are no bumps on the outside. I have been like this for two days and the places where the rashes are feel hot to the touch. They do not itch, except once in a while, but it mostly burns. The most recent new symptom is that my arms and legs (where the rashes are) started to hurt, they hurt whenever I move them. I have not began any new lotions or soaps. What could it be?