Hello,
Thank you for your query at DoctorSpring.com
I understand your concern.
Repeated discharge from urethra certainly merits further investigation. You should get ultrasound KUB to rule out any other pathology.
If no pathology is found then you should start yourself on doxycycline under care of your doctor. There are some bacteria that don't respond to normal antibiotics.
Feel free to discuss further,
Take care
Sincerely
Rajiv Goel