Hi there, so this has happened to me once before and is happening again, I am wondering if this is just because of friction from sex, and because I used a massage oil as lubricant not thinking anything of it . So after sex this inside of my vagina felt raw then the next day on both sides inside it is white, almost ulcer like but more looks like white patches, it is extremley painful when I pee. I have no other bumps or discharge. I have been std tested recently all negative . And with my boyfriend for 1 year now . I am a bit scared it could be something . But could this just happen because of friction during sex ? And the fact i used that massage oil. Also it feels a bit itchy as well , but I avoid scratching it because then it stings and hurts .