T.P.
My daughter has allergies too and I had to start using free and clear laundry detergents. You may want to try it for a while to see if that helps. Also you want to switch the soap she when taking a bath. We use baby Aveeno, even though my daughter is 4. If she plays in the grass the rash could be from that. I am allergic to something in the grass but I can't remember what its called. I don't spend a lot of time in the grass because I will itch and have raised bumps. Good luck!!