My 4 year old has a rash, it started on Thursday on his forearms, pediatrician said it looked like contact dermatitis, he also was diagnosed with strep, but the rash doesn't look like a strep rash. On amoxicillin for strep, on Friday, rash grew hot to touch and became very red and itchy, so I started benedryl. Today he looks like he has a sunburn, only places unaffected are groin and ankles and feet. Fever still come back, rash still warm to touch, seems the brightest on his cheeks. Oh, he's non-verbal autistic as well so he can't describe any other symptoms to me. There have been no changes to soap, detergent, environment, or foods in the last 3 weeks, and he is a fair skinned red head as well.