I have a rash on my inner butt cheeks, it started out looking almost like a diaper rash I tried zinc oxide that made it sting, I thought maybe a yeast infection but the cream burned and the three day treatment I did, didn t help any, I m taking antibiotics because I have a uti, the rash isn t effected by it, looks like its spreading and everything burns it, no itching and its been around almost a week