I am taking my 2 year old daughter in to a doctor today for pinkeye, but I just noticed a bright red, splotchy rash that looks like a sunburn on her butt, stomach, legs and upper arms. It's worst on her bum. Some spots have raised bumps, larger than the "pin prick" rash and irregular in shape. She also had a fever a couple of days ago and cough and runny nose. The rash came on quite suddenly and I wondered what it could be.