New Reply New Topic Follow. Scared Silly. Every month about a week or 5 days before I get my period, I get a boil in the exact same place. It last about 3-4 days until it pops, and blood comes out of it...Then it leaves a purplish scar...I don't know if its really a boil, its down below, on my pubic hair line.Same thing..Month after month. dont know if what I have is the same as any of you but about 5 days before my period I get a boil on the inside of my panty line. I have only had them a few months but the first 2 would grow from the size of a pea to a large golf ball and were very painful and never fully drain.