i had sex a few nights back (without a condom). next day i felt alot of itching. the following day i noticed a slight bump and slight swelling of my right libia. it doesnt hurt, but itches like crazy. im not sure what it is, ive looked online, but havnt gotten straight answers. im not sure if its an std or an infection or just temporary bruising from rough sex.
any idea's ?

the itching is pretty annoying !!