This website explains the different medical conditions that cause vulva and vagina infections, including some infections that appear to have a boil-type of appearance. Graphic pictures of vaginas infected by the different illnesses are shown.
This website has a picture of a vagina affected by an acne condition called acne inversa. The acne appears to have a boil-type of appearance. The picture of the vagina affected with such boil-type condition is very graphic.