It seems to me the tourist clinic doctor overreacted. Oral sex is safe sex, with low risk for all STDs and zero risk for some, including HIV. The risk probably is even lower for such a brief exposure as you had. There has never been a proved case of HIV transmission mouth to penis -- despite the billions of such exposures that have occurred over the years. (One estimate several years ago, from CDC, was that if the oral partner has HIV, the chance of transmission by oral-penile contact is once for every 20,000 exposures. That's equivalent to receiving BJs by infected partners once a day for 55 years before transmission might be likely.)

For those reasons, most STD experts would not have even recommended testing, let alone preventive treatment of the kind you received, and certainly not PEP against HIV. An important downside of PEP is that if it doesn't work, it might extend the time until valid testing can be done -- according to some experts, as long as 6 months. As a result, the period of anxiety goes on much longer, because without treatment a valid 4th generation HIV test can be done at 4 weeks. However, this forum doesn't provide specific medical advice, and you should not stop PEP based only on my opinion. I recommend you find an HIV/STD expert for additional evaluation, including advice on whether to stop or continue treatment. In the meantime, stay mellow. The chance you caught anything is extremely low, and really zero for HIV, for all practical purposes.

I hope this has been helpful. Let me know if anything isn't clear.

HHH, MD

While I'm going to stick to my guns about providing direct care -- i.e. I'm not backing off on my statement that you should not interpret my comments as instruction to stop the PEP -- you should at least phone the travel clinic and ask whether they really think it is necessary or wise.

As for still being stressed, there's nothing more I can do. You have had highly expert, reasoned, science-based advice that there is no cause for concern and worry. The rest is up to you. I'll just add that you need to separate your guilt, shame, and anxiety over a sexual decision you regret from concern about STD/HIV risks from it. They aren't the same. Maybe try going to a mirror, look yourself in the eye, repeat "You don't have HIV" 20-30 times, then mellow out, prop your feet against a frangipani bush, and have a beer. Truly, you have nothing to be worried about.

That completes the two follow-up comments and replies included with each new question, and so ends this thread. Best wishes and stay safe (as you did this one time!).