So I first got this puss bump on the back of my left thigh. i didn't give much attention to it until it started to hurt really bad when i would sit down. when i get up, i would have this pain going through my whole leg. i then checked it again, and it was like a black dot, in puss, in a red bump. My mom & I thought it was a spider bite. So i put cortizone on it and it opened up. puss & blood kept oozing out. I would squeeze as much out as i can and clean it with hydrogen peroxide then put neosporian and a band aid on it. I continued those steps for the next few days and it went away. now its like like a black scab with dry skin around it but it doesn't hurt. then a few days later, i found another bump in the back of my right thigh, and like 4 bumps on my butt. it really hurts to walk and sit. Even move. 1 of them, i did the steps on now its just like an open cut. but another ones a really big bump and A LOT of blood and puss is oozing out. but the other 2 or 3 is still closed. They're ALL really painful. I'm not sure if they're bites or because of bacteria or what. Please help me figure out whats going on & ways to heal them up ! Please!