Acne-

So, I know there’s facial acne, back acne, chest acne, but I get “acne” on my butt? It’s not so much acne since none of it pops but it’s like red bumps.. I don’t know what it could be from but I’ve been super self conscious about it and want it to go away. I’m too scared to talk to my mom or sister about it, but I don’t know how to make it go away. Anybody have any ideas of why it’s there or what to do?