I am white early 60's she is black early 40's - been together 3 times - 1st time unprotected oral both ways - 3 days after incident red dots appeared on head and shaft of penis - penis became dry - and red dots actually bleed a little - applied lotion red dots went way took about a week - she did apply a great deal of suction - more than I have ever experienced and I am quite sure that the red dots were due to this - I also take viagra and I understand the concept of increased blood flow and wonder if this is a contributing factor? Next time she performed oral (not near the amount of suction) a few red dots and we had protected vaginal. The last incident occured on 07/21/21 - Once again red dots and a lot of suction - went away after I kept it moist - but did not bleed. On Tuesday 08/17/21 - I had a single red dot show up on my penis head - so I applied a little triple antibiotic cream - my question relates to syphilis - if it were a canker sore would me putting this cream on it prevent it from developing - and would there be other things like swollen lymp nodes associated with this ? It is still present today but nothing like a cold sore which is what i percieve a canker to be - I was going to have a test done to be sure but went to doc and had an infected tooth so he put me on amoxacillin 525 mg 4x 7 days 28 pills - so I am assuming this would make the test inaccurate - if I do decide to test how long should I wait and what is the name of the test I should do? I think I read where some give false positives - I also understand to be infected it would be due to contact with an infected source - and she had no sores on her mouth - and if she had one internally then it could happen I suppose but understand its not an efficient means to transfer - also is the treatment regime the doc prescribed adequate to treat syphilis 

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Thank you very much - I appreciate your time and response - The last time she performed oral was on 07/21/21 - and the red dots presented again 3 days later (just as it had the other times- chalked this up to intense suction) was not concerned about syphilis  ) - the one lone red dot - which bleed a little showed up 08/16/21 - I applied triple antibiotic cream that day -  (definitely not a open sore) - and of course anxiety is a challenge - then next day I went to doc for dental cleaning - he then prescribed the amoxicylin for the infection - so I am now on it - i have taken maybe 5 pills so far - so would the 7 day 28 pill clear it up if i did have syphilis - which I do not think I have - and would the triple antibiotic cream prevented a chancre from developing?  

Thanks for clarifying the timing, which is more consistent with syphilis. But that's still very unlikely; a syphilis chancre would not start as a red spot that bleeds.---

Ok so the question was submitted 17 days ago - when the one dot showed up - so on the 1st of September I noticed more of these - (I did masturebate on Wed and Thursday) on Friday the 4th I noticed more red dots they appeared on the head looked like that had some fluid on top they are not big (very small diameter) - pin needle sized) and they do not hurt - (but when I apply lotion it does feel better) but my guess is that it could be herpes - how likely is that they could be herpes - after this amount of time has passed - also how do you diagnose herpes? Will it go away on its own - and how is it treated - if you touch the dots and touch other areas of your foreskin can they be spread that way? 

Almost certainly this isn't herpes, which doesn't look or behave like your description. And almost equally certainly not any STD. (Over 95% of all genital rashes and other skin problems are not due to STDs.) If I had to guess, I would wonder about a yeast infection, perhaps from your recent sex partner -- but not considered an STD even though yeast infections are commonly shared by sex partners. But not knowing the cause, I cannot speculate about spreading it to other areas of the genital area. You need to stop guessing and wondering, or trying to sort this out by distant online assessment on this for any other forum or online source. See a health care provider, ideally a dermatologist. In the meantime, do not try any treatments of any kind, which probably would not help and would have a good chance of making an eventual diagnosis more difficult.---

So I have an appointment scheduled with a dermatologist - you said If you had to guess - which is what you would have to do of course - not actually seeing the rash - could be related to yeast - well I applied triamcinolone acetonide - it cleared up with in 2 days - does this mean - that as you said it was not a std but could be simply a form of contact dermatitis as you said most rashes 95% are not related to a STI

Hmm -- I guess I forgot to close this thread, as intended. All I can say now is that prompt improvement with triamcinolone, which is a pretty potent corticosteroid, doesn't mean much in guessing the cause. But there is no STI that would clear up with steroids. The main thing, though, is that I'm sorry you didn't follow my advice to avoid treatment before seeing the dermatologist. As I predicted, it is now highly probably that s/he isn't going to be able to diagnose what it was.  You might consider putting off that appointment, stopping the triamcinolone, and seeing the dermatologist if and when the rash reappears.---