I had a possible exposure 12 days ago, and a few days later experienced prodromal tingling, pinching, bubbling sensations and itching in genital area. No lesions that I can see, but lots of discomfort. 

When you say you were put on small doses of antivirals early one, for how long did you take them?  Did you stop them before taking the western blot?  ---

I had a situation 12 years ago,, had what I thought was an outbreak 2 weeks later. Unfortunately the doctor didn’t swab because he said it didn’t look like herpes but looking at photos now I would say it did. He put me on a ten day dose and the.n I went on something later that maybe was more regular, I can’t remember but will update if I can find it. The western blot was about 20 weeks post exposure. Can’t remember if I was on them when doing the western blot but you had administered it so I would imagine we discussed. You said it was negative and I should move on. So I did. Now 12 years later I’m in a similar situation. I’ve treated it as if I was truly negative in the past and this is a new situation (nearly identical symptoms). So I’m asking, assuming I was truly negative, should I go on antivirals asap, or should I avoid them because they may have affected testing in the past and maybe this is just a new outbreak from 12 years ago

Seeing a doctor today. Should I avoid antivirals? Any reason to or do they impact testing and push out the dates where I can feel conclusive

I believe it was 10 days acyclovir at 2 weeks post exposure, then a short dose of Valacyclovir at week 7, western blot at week 20, I was off antivirals for 13 weeks at that point

My symptoms are bothering me and I have some acyclovir leftover, but don’t want to be in testing limbo later

If you don't want to be in testing limbo later, don't take antivirals now.  It is way too late for help in preventing latency now anyway.  And the doses that you took previously did not interfere with testing back then.  I seriously doubt that the experience put you at any risk for HSV anyway---