My almost 3 year old recently had a severe rash. It first looked like a sunburn, and then turned to a splotchy rash. The entire time it was itchy. As it got better (about 4 days) it became dry and rough. A few days later she spent a little time outside. The next morning (yesterday) the rash was back, but not as severe. Yesterday and today she has had little to no appetite. Today she has vomited 3 times (just water and the little bit of eggs she had for breakfast.