Doctors,

I am on vacation and my friends recommended a local masseur. I saw him this morning to have some R&R. At the end of the massage the guy started to perform oral on me. I thanked him and asked him not to. But, obviously, he was able to put his mouth up and down my shaft/head a couple of times before I halted it. 

I am a bit of a germaphobe. I wanted to know what my chances of getting an STI/STD. Should I get testing/medication? Are there some infections that are more probably than others (for this situation)?

Thanks for listening. (I will have to filter my friend's advice in the future)

Welcome to the Forum.  I'll be glad to comment.  This was a low risk exposure.  Most people, even most commercial sex workers/masseuses do not have STIs and oral sex is a relatively inefficient mechanism for spread of STIs from a biological perspective.  When STIs occur following receipt of oral sex the two most common problems are gonorrhea or non-gonococcal urethritis (NGU) both of which are typically clearly symptomatic within 3-7 days of an exposure.  the symptoms which occur are burning on urination or an obvious abnormal urethral discharge (no need for repeated self examinations, if you developed a discharge you will know it).  In addition, the brief duration of your exposure makes acquisition still less likely in the unlikely event that your masseuse did have a pharyngeal infection.  There is no risk for HIV and a mostly theoretical but close to no risk likelihood of other STIs.

What to do.  Relax.  No need for antibiotics at this time, in fact when persons take antibiotics in such situations, they most typically just confuse things.  If you are really nervous you could get a urine test for gonorrhea and inflammation but were I you I would not bother.

I hope this comment is helpful.  If there are further questions we do provide up to two follow-up questions as part of each thread.  EWH

Dr. - Thank you for responding. That puts me a bit at ease. I have a (strange) follow-up question. I have a dental procedure coming up and I am supposed to start taking Azithromycin preceding that procedure (starting tomorrow actually). Will that antibiotic kill any of the items you mentioned (since I have to take it anyways)? 

If I were to get a urine test...should I wait for ~7 days? (I might not, but wanted to know)

The azithromycin may cure some but not all STIs.  It provides an extra level of assurance that you will not have an STI.

Urine tests for gonorrhea will be accurate at any time more than 3 day after your exposure.  EWH