Ok, so I had this thing on my leg, it was full of blood, about the size of a quarter. I assumed it was a boil. I let it pop on it's own. It looked alot better for 2 days, got flat, looked like it was healing. Now, it's puffy again, not as bad as before, but it looks like it might be filling back up. Is that normal? I'm afraid it's going to get bigger. The first time it was very painful, it was on my inner thigh, right on the panty line. Was it a boil, or something else because it was full of blood.