Recently I’ve noticed I’ve been getting acne bumps on my butt.. I don’t know how to get rid of them, I’m very clean and I haven’t changed any of the soaps I’m using so I don’t think I’m having a reaction to anything. Any tips on how to make this go away and stop happening?

sorry the picture is upside down :/ (there’s a little more than this, I just didn’t wanna post a picture of my whole ass)