Thanks to you both for your comments. Well, I am back from a Holiday and able to add to the drama. The day after I posted the original story above, I started to get more burning sensation in the scrotum. Also, it traveled to the anus and between the butt cheeks. So, bad, that I was in considerable pain all weekend when I walked or sat. Except for at night an in the mornings. Including feverish, aches, tired, etc. I felt something had to be wrong. When I returned home on Tuesday, I checked and thought I saw swelling welts (like hives), and lesions. I went directly to the doctor, and of course, my symptoms were gone when I arrived. She saw nothing unusual with my genitals or anus. No lesions, no rash, no signs of anything, nothing. It seems my mind must be playing tricks on me. But then, why today as I sit here, my scrotum is burning again. The pain has stopped in the anus/butt area. Could I have jock itch, or some sort of dermatitis, fungal infection? I also know I have Ecsema because my legs, hips, waist, sides, all itch at various times throughout the winters. Plus, I am living in a new country and new climate. Could that also be in my genitals? I've never had it there before.
The burning 1 day after sex does not sound like herpes (too soon, wrong symptom). I can't comment on the rectal blister. If it was herpes, then a herpes 2 blood test should be positive in 8-10 weeks. I doubt it was herpes, but you'll have to wait for the test results for complete reassurance. The wite spots on the scrotum are most likely cysts that are norma and that you're noticing now because you're anxious. The burning sensation is very likely from anxiety too.
My advice is to see a dermatologist or STD specialist when you can, so you can sort all these things out. But I'd be surprised if at this point you have anything at all.
Also, avoid unprotected sex,
Best.
Dr. Rockoff
Everyone has white spot on their scrotum and base of penis when the skin is stretched. If you look carefully you will see that they form the base of each strand of hair. You are looking at the sebaceous gland and hair follicle of your skin. I wondered about this too. The give away is the regular pattern and the fact that there are lots of them. It gives a "chicken" skin appearance on close inspection. Interesting eh?
Also, from my understanding, initial herpes would not be on your rectum (unless you had receptive anal intercourse - which you clearly did'nt).