Hello, I was curious if Hiv can be transimitted through a mild friction burn on the knee. I had gotten together with a prostitute(big mistake) everything was ok in terms of having protected sex. However, at one point she was rubbing herself of my knee which had a real mild friction burn. The friction burn itself was barely visible and not even tender. The only way i new it was there is when i took a hot shower afterwards and could lightly feel it. Maybe im just paranoid, but i'm still freaking out.