Well, two weeks ago, I was injured by a pin, at a cloth store while taking measurements. It went reaaly deep, in a stupid accident. I though it was not a problem, since it's not a hollow needle, and the virus is very unstable out of the body. 8 days ago, i've a sexual contact with a friend, which involved me receiving 10 seconds of oral sex, and me rubbling and pushing my penis against his anus. At some point, i've pressed a little harder, and he asked me to stop. I don't think it did get in, and my friend assured me it didn't, but still, I have no clue of how dip it has to get in for this activity to be a dangerous one, and I have no clue about his status. Today, 2 huge red bumps appeared in body...one at the scalp, and the other on my back. Should I be concerned about HIV rash? Thank you