What Causes Vaginal Swelling And Discharge?

it all started 2 weeks ago when i had a little cold so i took theraflu for about 3 days to get rid of it...which seemed to help. a couple of days later my boyfriend i had rough sex (involving sex gadgets). I began feeling irritation down there n thought maybe it was a yeast infection coming along but the discharge was creamy/milky/off whitish (but not as thick as a previous YI). That lasted about 4 days. I didnt have sex in 2 weeks but did last night...it was really uncomfortable and i noticed red swelling imm. after (still kinda swollen a little this morning 2)... havent seen a gyno cuz i dont have health insurance.