Dear Doctor, My 11 month old son has been irritable for the past few days. He currently has two teeth coming in and has been running a low grade fever for the past two days. I associated the low grade fever with the teeth though now I am second guessing myself. This evening I took his clothes off of him to prepare him for bed and found a rash on his back. It is pimply and as far as I can see, we have not changed anything. We have not changed detergents, soaps, added new foods, etc... My 5 year old daughter is just getting over a virus that involved a swollen throat with a croup sounding cough. She is now almost completely recovered. The only reason I mention it is in case there is a connection between the two. What are your thoughts on this rash?