[Question #9137] Unprotected Oral sex risk
35 months ago
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I’m a male that met a female at the bar last night. She performed unprotected oral sex on me for less than 5 minutes. It was a one night encounter so I do not know her sexual history.. The day after this encounter I took 500mg of cipro and 100mg doxycycline and plan to continue the doxy for 7 days to be safe. I am married and my spouse would not approve of this encounter. My last STD test was several years ago and I was only positive for HSV1 What is my risk level for any STI/STD, including HSV2? Is there any issue with taking the antibiotics I described to be safe or other preemptive treatment I should try? Would you recommend testing and if so, should I wait to become symptomatic before doing so? How long do I need to remain asymptomatic before being intimate with my spouse again to protect her from a possible infection? Thank you and I apologize for the multiple questions.
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H. Hunter Handsfield, MD
35 months ago
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Welcome back to the forum. You asked a very similar question 5 years ago, also describing an oral sex event. The answer hasn't changed. Oral sex is safe sex -- not completely free of STI risk, but must lower risk than vaginal or anal sex.
HSV2 is rarely if ever a risk for HSV2, because oral HSV2 infection is uncommon. In my 40+ years in the STI business, I have never seen nor heard of a case of genital HSV2 acquired by oral sex. The antibiotics you took are not recommended in this situation, but if you had been exposed, they would have prevented chlamydia, syphilis, nongonococcal urethritis, and most (but not all) gonorrhea. In absence of symptoms -- urethral discharge, painful urination, genital sores -- I would not recommend any testing or treatment. If somehow I were in your situation, I would continue unprotected sex with my wife at any time, without any worry.
I hope these comments are helpful. Let me know if anything isn't clear.
HHH, MD
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35 months ago
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I know you said that you would not have recommended taking antibiotics but I do have a follow up question. Would a 1.5g dose of Zithromax be effective in treating gonorhea if present ?
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H. Hunter Handsfield, MD
35 months ago
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The recommended dose of azithromycin for gonorrhea is 2 g.---
35 months ago
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Thank you. I did end up taking 2g azithromycin and will take my last 100mg of doxy tomorrow.
I have decided to test for Gono/chlamydia . Being that I did take antibiotics, do I need to wait a certain amount of days before submitting a urine specimen in order to ensure accuracy?
How many days since the incident without blisters/ulcers should be enough to rule out HSV-2?
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H. Hunter Handsfield, MD
35 months ago
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Having taken those antibiotics, there is no point in urine testing for gonorrhea and chlamydia. There was little if any risk to start, and doxy and/or azithro would have aborted or eradicated either of them if you had been exposed, with negative test results. There is no way to ever know whether you might have been exposed to or had early infection with either of them but were cured. Same for NGU and syphilis. Don't waste money on it.
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New herpes usually starts to cause symptoms after 3-4 days, but it can take up to two or even three weeks. Here too the risk is very low.
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35 months ago
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Thank you Dr. Handsfield. It’s now been 10 days and I have no ulcers/blisters. My anxiety for anything other than HSV2 is gone at this point. I have seen you use different phrases to describe a potential hsv2 oral to genital infection like low risk, virtually zero, and that you have never heard or seen of genital hsv2 aquire through oral. Can you further elaborate on potential risk here and is it safe to say at this point I am in the clear?
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H. Hunter Handsfield, MD
35 months ago
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I have never seen a case of genital HSV2 acquired by oral sex, and neither has Terri Warren, the forum's herpes expert -- and she has cared for over a thousand patients with genital herpes. Oral HSV2 is rare, therefore not transmitted by oral sex. You definitely are in the clear.
That completes the two follow-up Q&As included with each question and so ends this thread. I hope the discussion has been useful. In the event of future oral sex exposures, you can safely assume no infection and no need for testing (and no need for self treatment with antibiotics!) if there are no symptoms within a few days.
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