The doctor gives her a cream Clotrimazole and Betamethasone. We use it twice a day and it works, but as soon as she gets hot and sweaty it comes back. Yuck! We use powder and keep her clean. She is 93 and always cold. She wants to wear sweaters all the time and I know she must be too hot! First the rash is red like heat rash and then it gets gross like a ringworm type of sore. Any ideas to get rid of this stuff for good?