STD from unprotected oral sex

[cubsfan1123]

Doctors,

Thanks in advance for your services.  Similar to others on this forum, I engaged in unprotected oral sex with a woman  a couple weeks ago.  She is not a sex worker or a drug user and I noticed no visible lesions, cold sores, etc. on her.  2 nights ago I developed a rather large lesion on the bottom of my mouth, under the tongue against the right lower jaw.  It's painless and there is no sore throat or any other symptoms.  I tried to prick it with a pin and it just seemed to get worse.  Besides this, I have been under the weather with a sinus infection.  My great fear is that I've exposed myself to an oral STD...perhaps HSV1 or worse.  Assuming this is HSV1, I suppose I'll have to live with this forever now and will likely suffer cold sores, etc.?  Oral HSV2 would be even worse I'm guessing?  And finally Syphilis or gonorrhea are possibilities I assume?  I've attached pictures of the sore in my profile.  Any advise is greatly appreciated.  

Best regards

[Edward W Hook, MD]

Welcome to the Forum.  I will try to help. I doubt that this is related to your performance of oral sex on a partner several weeks ago.   STIs following oral sex are rather uncommon and the description of the lesion you have noticed, particularly the location would be most unusual for any oral STI that causes lesions such as HSV-1 (which also typically is accompanied by feeling poorly, multiple lesions, fever and/or local pain) or syphilis (which is present in fewer than 1 in 100,000 heterosexual American women and is not transmitted even when present in most exposures).  Other more common STIs like gonorrhea do not cause symptoms and certainly almost never cause lesions.  

Lesions of the sort you describe could represent other sorts of problems (underlying dental problems, a medication reaction (and new medications, perhaps for your sinus problems?), or other problems (you don't smoke or chew tobacco, do you?)  In the two nights since you noticed it, other than changes due to poking it with a needle (please don't do that anymore), has it changed since you noticed it?

I may have other comments once I hear your responses but I think you need to have this looked at.  A generalist or even your dentist might be a good place to start and they may feel it is appropriate to refer you on to an oral and maxillofacial specialist.  EWH

[Edward W Hook, MD]

Thx.   That leaves me as a loss although as I said, it would be quite an ususual manifestation of HSV-1.  If it goes away on its own you may never know what it was.  On the other hand, if it persists, I suggest you get it checked out.  In the interim, I would not worry about it being an STI. EWH

[cubsfan1123]

Dr. Hook,

Thanks for your response.  To answer your questions:

1.  I do not smoke, nor do I chew tobacco (never to either)
2.  No real dental problems or new medications
3.  No real changes...perhaps a bit smaller today

I don't have a fever either.  You don't think this could be due to HSV1?   thanks again for the response.