I would also suggest that if your penile rash continues to reappear, the next time you not treat it with anything and promptly see a dermatologist. Most likely you'll find it's some sort of minor, garden-variety, non-STD condition.
Welcome to the forum. Thanks fo ryour question.
You had an entirely safe exposure 10 months ago. STDs, including herpes, are not transmitted by hand-genital contact, or skin contact with semen or other sexual secretions. In theory HSV could be transmitted, but only if infected secretions contacted an open wound or perhaps were very vigorously massaged into the skin (with enough vigor to injure the skin).
Second, your symptoms are not at all typical for herpes. With or without steroid therapy, herpes lesions cannot appear and disappear in a matter of hours. Once a herpes lesion is present, it can't clear entirely in under a week, and generally it's 10-14 days -- and would go through an open sore and scab phase before healing.
For those reasons, you really didn't need any of the STD testing you had. There was simply no risk for any of the infections for which you were tested.
To your specific questions:
1) No and no.
2) Fluconazole is an antifungal drug, with no effect on any STD. Azithromycin would have prevented or treated chlamydia and most (but not all) syphilis and gonorrhea. Of course no antibiotics have any effect against herpes, viral hepatitis, HIV, etc.
3) I assume you mean "reactive", not "reagent". If so, you apparently are infected chronically with HSV-1 or HSV-2. Statistically, it is most likely you have HSV-1, as do half of all adults -- usually reflecting an oral infection in childhood. If you want to follow this up further, you could have separate HSV-1 and HSV-2 IgG blood tests. However this sorts out, you certainly did not catch HSV during the sexual event 10 months earlier.
I hope this has helped. Best wishes-- HHH, MD