So the past couple years I have shaved my bikini line and hardly ever got razor burn or ingrown hairs on my labials. Recently, my boyfriend and I have had sex quite often and after we had finished I noticed he had developed a cold sore on his bottom lip bigger than I had ever seen. He had gone down on me during sex and a couple days later I have had this lump that is spreading and is extremely painful and red and swollen. It even has waken me up at night from the pain. I had also just shaved that night prior and we had used lube. Is this an allergic reaction or has he given me what his cold sore was on my labia? Or could it possibly be a large ingrown hair or hair follicle infection, as I have the worst cellulite in the world, and hair follicle infections have been hard on my body before.  I don't have a personal doctor yet, as I have just moved here a year ago and haven't had to go to one for anything major. Any home remedies for the pain and swelling?