Hi I have a bump between my anus and vagina I cant understand what it is before i experinced having it and i just take antibiotics and it fade away. Itake flagystatine antibiotic pill and it fade away. Then yesterday I had it again it is small bump look like a blister and it is painful . I hope someone can help me what is it because it is really annoying. Today or nextday I will plan to have a consult in GP find out how it is and how to cure it .