My 3yo was diagnosed with tonsillitis (strep throat) on Sunday and has been taking antibiotics since. He had a very light colored, non-itchy rash this morning on his neck, chest, belly and back. I called the pediatrician who said to monitor it and if it is worse tomorrow morning, take him to the hospital (our ped is on vacation, but he is still fielding calls and looking at my text message photos). Has anyone experienced this before? Dr. Google tells me it could be scarlet fever!?!?