2 months ago I had a protected vaginal sex and unprotected oral sex with a Russian prostitute. After a day I felt the burning sensation in my urethra followed by a puss discharge 3-4 days after encounter. Then I went to the doctor and he prescribed me 1 x 1 mg of Ceftriaxone intramuscular and 5 x 400 mg of Ofloxacin. After the third day of the cure, my symptoms had all cleared up. As I was thinking that I was cured, 1 week after the end of the cure (without any other sex activity) I had a discharge once again ! I though the drug used was not enough so I have made the same cure without going to doctor. And again 1 week finishing the same cure it came back ! Then I went to other doctor and he told me that I have to be treated with chlamydia as well and prescribed me 10 x 200 mg oral Doxycycline. At the end of the doxycycline cure it has been 15 days and still I am having syptoms and not cured !! Now I am having my urine tested for the STDs. I used the most effective weapons for gonorrhea and chylamydia and not still cured !!. Yesterday I also noticed white line shaped particles in my urine. This must be the damaged tissue from the bacterial infection in uretha i guess. I also wonder what is the possibility of having prostatitis ? but i have no pain while urinating or any difficulties. I just have a yellow-white-colorless discharge and a small pain on the tip of my penis only when discharging. What alternative medicines should I use and how long should I use ....