Ok so long story short, My boyfriend and I had sex this last weeekend ( about 5 days ago) neither of us has a std and nothing was different so I know its not an alergic reaction. Since then thought, ive had a pretty constant itch 'down there'. At first it burned to pee but that stopped. Ive tried looking into it and it looks nothing like a yeast infection and isnt a UTI. Theres no redness but a small lump (it kind of looks like swelling more then a lump) on the skin around my opening. At first I thought maybe he strached my during forplay or somthing but now im not sure.. If anyone can help me get an idea of what it is exactly Id be so appreciative... thank you....