My 12 month old son has just showed up with a bad rash across his shoulders, neck, tops of his arms, and around his hair line. It is real red and bumpy. But he doesnt seem to itch really. I have tryed giving his benidryl and oatmeal baths. also i have tried baking soda bath and putting corn startch on him. But nothing seems to make the rash better and now he is sleeping a lot and has a very small appitite. I think it might be a heat rash. But when i look up information on it... it doesnt sound like it to me exactly.