3 year old boy with rough, pus free rash over entire body My 3 year old grandson has developed a rough, rash over his entire body after having a fever on and off for the past 3 days. The rash is not red, just tiny bumps. His appetite is down, even after the fever has subsidied. He is a normal, healthy boy eventhough he was born without a thyroid and has been on medication since birth . Any thoughts/ideas? Thank you.