I have taken doxycycline twice, azythromicin, metronidazole, and moxifloxacin
. I had relief with initial doxycycline treatment, but it came back shortly after.
Tests for herpes, gonorrhea, chlamydia, ureaplasma, micoplasma, trichomonas, syphillis, HIV, hepatitis are all negative.
Cystoscopy 2 weeks ago confirmed urethritis. No other symptoms.
Why does my penis still burn?