I dyed my hair about a week ago, and yesterday I woke up to a rash behind my ears and on my chest. It looks a lot like a heat rash which is what I iniatially thought it was, but it seems to have spread to my jaw line as well. It isnt itchy and the bumps are flesh colored. Could I be having an allergic reaction to the dye or something else? Or is there a virus and that's how it's presenting itself?