What Causes Worsening Vaginal Itching, Dryness And Swelling After Intercourse?

hi i am having vaginal itching from last many months, sometimes it is severe and sometimes it is manageable. my vagina gets dry, red, and swollen as well. it gets worse after sexual intercourse. and i feel burning like pain while sex. moreover, i am having urinary tract infection and i am taking medicines for it.
tell me what to do about my symptoms?