eczema or allergic reaction? Help!!!

Samantha

My baby girl is 3 moonths and she has had this rash on her belly for about 2 week just over the past 2 days it has gotten worse. it seens every time we try a new cream, it gets worse. I have an apt. in 2 days with her doc but can anybody give me any advice. She rly doesn't seemed bothered by it unless her shirt is off then she tries to rub it.