Dear Doctor: Sorry for my weak English, half a year ago, I received a special service from a sex worker, she sucked my back with her tongue, sometimes with hot water in her month, the most serious situation I am worrying about is I had acnes on my back that time, no open wound(Because I asked my friend after). If she had bleeding on her month at that time, do I have risk of getting HIV? On the later several months, I received protected oral sex for twice. Do I have any risk of getting HIV? Thanks! Cause I don't believe the answers from my domestical doctors