Advice... wtf happened??

I really didn’t know where else to post this because I really need some answers. I went swimming on June 12th. I used a hair removal cream all over my body. It worked perfectly and did the job. The next day I noticed pimple like bumps on my ass area!! Like lower back starting onto my top butt cheeks. This is the only area this happened to. I’ve been using alcohol swabs on it every other day. They’re sort of like pimples but I don’t know how to describe it. Will they go away? They seem to be lessening but it’s still noticeable. Do I just let it go away by itself?? My skin is pretty sensitive too but only around my butt cheeks this happened. Is it gonna leave scars? It does seem like it just broke out around the area but I’m not sure and I’m worried lol. Thank u! Please give advice