Chafing was a part of my daily routine when I run because I really couldn't find something that really worked. It was almost as routine as taking off my socks and the rest of the day was just dealing with this uncomfortable feeling. The worse of it was my butt rash, where it would really be sore and red. I was always wondering how to prevent chafing that goes down there! Well, a friend of mine mentioned to me this product and now all I have to do is apply this calamine powder to my skin and I have no problems at all. Anti Monkey Butt is the best chafing powder on the market and the only real solution for a runner with chafing issues.