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STD advice needed

Dear Doctor.
Firstly many thanks to you all for this great service. 6 days ago I had my first bisexual encounter MSM, in which I received oral sex. The guy did not rim me but licked my scrotum and penis. At one point his finger very briefly entered my anus but that was all it was. His penis and any seminal fluid did not enter my mouth or anus. He also hugged me very close at one point to his groin but only briefly. I also kissed this guy quite deeply mouth to mouth. We also had mutual masturbation but did not come into contact with his semen. I have read many of your threads on the unlikely/near zero transmission of HIV through receiving oral sex and this has put my mind at rest a little, but could you give me the likelyhood of syphilis via this oral contact ie 1 in 1000 etc, and could you please also state the implications and possible spread of herpes and other std's including hep A,B,C,D. His mouth hands and penis looked free from sores or warts but he did have a large red/brown patch of skin with a small area of white crusty skin at the top of his legs in the groin area. Could this be herpes or more likely to be psoriasis. I did not touch the rash. 6 days on I have not had any symptoms as yet of burning sensation etc and 72 hrs after the encounter was tested neg for Gonorhea, chylamydia and today my blood test results were neg for HIV and syphilis. They have advised I return in 12 weeks for more bloods but this is going to be a huge strain on my relationship. Can I be tested again sooner in say 6 or 8 weeks. Thanks for your help.
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239123 tn?1267647614
MEDICAL PROFESSIONAL
I already said "I would not have recommended even the tests you already have had, and do not recommend any further testing at this time."  Did you think I might have changed my mind already?  But of course it's fine with me if you decide to be tested as many times as you like.  
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Avatar universal
Doctor, Thank you for your response. Would you advise that I be tested still for Syphilis as I have read this can take up to 12 weeks to show.What symptoms would usually be a sign of syphilis.. I will certainly keep a keen eye on things over the next four weeks and hope no symptoms occur. If I do not receive any sores or warts in the next four weeks can I assume that herpes transmission did not take place. Sorry for taking up more of your time. This will be my last post. Many thanks again.
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239123 tn?1267647614
MEDICAL PROFESSIONAL
I would like to help, but there are no answers to your questions in the detail you request.  That is, there are no data on the numerical odds of transmission for STDs other than HIV.  The best I can say is that since there was no insertive anal sex, the risks are low.  Statistically, the highest risks, all of which come from receiving oral sex, are for gonorrhea, genital herpes, syphilis, or nongonooccal urethritis (sometimes caused by normal oral bacteria).  And by "highest" I don't mean the risk was high; it was quite low for all these problems.  From the exposures you mention, there is no risk of hepatitis of any kind; hep C isn't sexually transmitted at all, except sometimes in gay men by anal sex due to blood exposure.  Your description does not suggest your partner's rash was herpes, both by the description itself and the location.  I won't even guess at other causes.

All in all, I would not have recommended even the tests you already have had, and do not recommend any further testing at this time.  If you develop a discharge or sores of the penis in the next 3-4 weeks, or other symptoms that concern you, see a provider for further examination in testing.  With the negative tests you already have had plus no symptoms in the next couple of weeks, you can be confident you weren't infected.

Best wishes--  HHH, MD
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