What Causes Persistent White Creamy Vaginal Discharge?

Hi i am very about my health my vagina often white fluid like a cream or yougurt often a transparent water or white and i was very itchy Often rub it badly my vaginal skin got too sensitive and bleed from lips and foldings it was very painful i consult a dr she advise me to use a anti bacterial cream and said it is due to calcium s or nutrients deficiency after then i dnt feel itching bt sometym urethra felt swell and i noticed a bump in vaginal opening i am very worried their is no pain jst a discharge or bump nd often urethral opening swell especially after hair removal cream or if i touched it please help