Suggest Treatment For Vaginal Discharge Along With Itching And Foul Odor

so my vagina always no matter what im wearing for underwear or what i'm doing iches and burns. And it smells like fish all the time. when i go pee it doesn't hurt but while i'm sitting there making sure its all out it burns but not down at my hole it burns futher up my tubes. My boyfriend and i havent had sex in a couple weeks because of it. discharge is very milky looking also