had unprotected sex 5 yrs ago and now have burning, dry, itchy vagina w/fishy odor, especially after sex. have been telling primary Dr and last one said it was in my mind. Switched Dr s and she referred me to Derm. Derm found eggs but no mite/parasite. Gave me stromectol and seemed to be working but after having sex w/partner-came back. When I had partner come w/me to Derm, my derm reluctently treated both of us but I drank alcohol 24 hrs later and systems came back again. What test can my derm give to prove/disprove I have parasites? And why are Dr s so quick to dismiss patients problems??