question: I have a rash on my butt. It looks round like a ringworm . It is itchy. 45 year old woman. I ve had it for about a month. It started on one side and now it s on the other side. It s on the inside of my butt and my anus is itchy. I have used over the counter hydrocortisone as well as lotrimin . It dried it out a bit but it is still there and spreading in side my butt.