I recently went to a park with my friend and when I got home,noticed small bumps on my thigh. I assumed they would go away soon enough and didn't bother about them too much. In the next 2 days, the bumps had grown massively to the size of ping pong balls and hurt a lot. In the middle of my ping pong bumps, was a scab and it would come often come off and release pus and blood. I googled this and the signs that matched the most was a boil. However, boils are supposed to be red and soft. My bumps are purplish (maybe because of my dark brown skin tone) and the bumps are not at all soft. They are harder than the rest of my skin. Is it a boil and should I treat it like one?