I have a cyst near my vagina and it hasnt gone away for weeks

Hello, I'm 15F and few weeks ago i got a cyst near my vagina, but like not inside it or anything. It's more above and like near my stomach and like in my pubic hair. it was really painful and i assumed it would go away after a few days but its been weeks and everyday it leaks puss and sometimes blood. its mostly flat now but it still leaks and its completely purple and hard. i just noticed right now a little red dot has appeared on it and its bleeding. it is also sometimes itchy but i dont want to tell my mom about it because its really embarrassing. i tried looking it up but i dont see anything that looks like what im describing. im wondering if its normal and if itll go away with time?