That's one of the main reasons there are public health STD clinics; there is real expertise, they are used to and entirely comfortable with sex and sexuality, and lots of people don't like discussing those things with their primary care docs. Still, since this is simply a genital area problem and not an STD, your own doc should be just fine, and being hesitant just talk about your genitals is obviously silly. (Virtually every woman does it at least once a year, without difficulty or embarrassment.) Based on your description, there is no need to mention your past sexual exposures. But if the doc asks, respond honestly. Most likely s/he will be more understanding than you think. Your doc has seen it all before -- trust me!!
Let me know what the doctor says. Until then I won't have more to say.
Thanks for the advice. I think guilt and embarrassment plays a big part in not going to see a doctor right away for most people. That certainly is the reason in my case. Revealing that sort of thing to anyone, even a doctor, is extremely uncomfortable. Talking about your private area, even aside from the personal activity I engaged in, is just not a normal topic of conversation for most people. Your advice and getting back a negative result on a blind STD test will sort of make going to the doctor easier.
An update, it does seem to have smoothed out some but there seems to be more redness to it. I'll definitely follow up with the results of STD testing / doctor's visit. Might be helpful / reassuring to someone reading this thread at another time.
Welcome to the forum.
This sounds like a non-STD dermatitis of some sort. Any of the hundreds of things that can cause skin rash anywhere on the body sometimes affect the genitals and I doubt this has anything at all to do with the oral sex event a few weeks ago. Based on your description I would not have recommended STD testing, which is rarely required after oral sex anyway. Oral sex carries little STD risk -- not zero, but much safer than vaginal or anal sex.
It is time to stop trying to figure out what you have online or by blind STD testing. See a health care provider. Most likely you'll find you have some sort of minor, easy-to-treat dermatitis.
Regards-- HHH, MD