Paulie:
I'm afariad I can't diagnose you on the basis of the information you've given me. There are 2 possibilities:
1. You have some exotic infection not cured by antibiotics. or
2. You're fine, and worrying about the infection is making your symptoms persist.
Normally, I would advise getting another opinion from a doctor you trust, in order to set your mind at ease. Under your circumstances, I don't know what to tell you, other than to seek out a reputable English-speaking doctor who specializes in penile or sexual diseases, bring all your records, and straighten it out.
For the record, I don't know of any infections which wouldn't have beed adequately treated by courses of antibiotics. Of course, that's not my particular area of expertise. But I'd still predict you'll end up with option #2.
Good luck.
Dr. Rockoff