I went to the urology and he told me that was not
herpes. I make exams
for herpes 1 and 2, sifilis and HIV. All of them with 40 days after my last exposure. All negative, except for herpes 1, which I think I got it while I was a kid, but I never had an outbreak. He gave me massive dosage of antibiotics which were not help ful: one ulcer were gone, another 2 appeared.
I changed my doctor and went to a dermatologist. Since I took antibiotics and did not resolve, probably is not bacteria.