hello GIRLS!~!i was taking a mild withdrawal pill to get my periods and at about the end of the dose i developed a blister at the edge of my left labia minora..OR maybe on the vestibule..it hurts when i wipe ... occasionally it itches ..i used to apply neosprin powder over there..today,3 days after,it has developed a mouth or something and its bleeding (no pus though)

it has not burst yet,its still popped out..should i go to the gynae?? or it will go away?help plz!!!
FURTHER INFO ABOUT ME-
PS:I M A VIRGIN
: ITS TOTALLY HUMID HERE AND I HAVE BEEN SWEATING A LOT(IF SWEAT IS THE REASON)
:I USE DOVE TO KIP THAT AREA CLEAN
:LAST WEEK I HAPPENED TO WEAR TIGHT PANTIES..