Its day 3 after 3 nights of melatonin and I was woken up by my middle easy child in a panic. My youngest difficult child was covered from head to toe in a bumpy red rash. It was hot to the touch. I waited for my husband to get home so he could see it before taking him to the Dr., then I gave him benedryl. But it took almost 2 full hours to go away. By the time he made it to the Dr., there wasn't much rash left. This was at 145. On the trip home, my husband stopped by the library, and called me to say the rash is returning. Could this be a reaction to melatonin? Yesterday we let him off his diet for the day so he could enjoy his birthday. He had chicken strips, fries, ketchup, mint chocolate chip icecream cone, pizza & ranch dressing. He has eaten all of these things before, but the last time he went off his diet was the first day of Spring Break back in March. Could this have caused the reaction? The doctor said to give him benedryl, but said it was most likely a virus. However, they gave him an antibiotic. I may be your average every day stay at home mom, but last I recall, antibiotics don't work on virus. Any ideas as to what is causing this itchy, red, bumpy rash?