I have thick, sour tasting vaginal discharge nearly all the time that is yellow in color only when dry. During sexual intercourse, I feel pressure and discomfort. Sometimes my partner feels a slight burning sensation. The discharge is so thick that the abrasion from intercourse causes it to dry up almost instantly. I ve had this condition for 2+ years. I have gone to several gynecologists who have prescribed me various medications such as Metronidazole, Fluconazole, Clotrimazole, etc. None of these drugs have helped clear up the issue. I have also had a Pap smear which only shows HPV, and a sonogram with normal results. Please help.