My daughter has always had crust like scabs behind her ears. Since she was a newborn. I have always had to put lotion behind them to soften it and then scrape it off. But today I looked behind them to notice one of them was very wet and had scabs on it as well. Then a rash started showing up and went down her neck a little. Ot is really concerning me with it being very wet and the rash. What could this be??