I was diagnosed with herpes about a year and half ago. I take acyclovir twice daily to suppress outbreaks, which has been very effective (no outbreaks in over a year). I am in a serious relationship, and we always use condoms for intercourse. My boyfriend would like to perform oral sex on me, but we are wondering how risky it is. I know most people recommend using a dental dam, but I don't think that is something we are interested in doing... What are the chances of my boyfriend contracting herpes through performing oral sex (since I'm on medication)?