How To Treat Recurrent Vaginal Infections?

HELLO DOCTOR MY NAME IS LORRAINE CRUZ . I AM A FEMALE . I AM 21 YEARS . I AM 5'7 . I WEIGHT 187LBS . BESDIES ME BEING OVER WEIGHT . I AM PRETTY HEALTHY . I WAS TOLD MY DOCTOR THAT I HAVE A LOW COUNT OF WHITE BLOOD CELLS . I TAKE VITAMINS DAILY TO IMPROVE MY BLOOD COUNT . I KEEP SUFFERING FROM VAGINAL INFECTIONS BUT AM FREE FROM ANY DISEASES... MY QUESTION IS ... WHY DO I KEEP HAVING VAGINAL INFECTIONS EVEN AFTER I CURE IT , IT REACURSES AGAIN AFTER 1-3 MONTHS LATER . I AM EXPERIENCING ALOT OF DISCHARGE AND A REALLY BAD SMELL COMING FROM MY VIRGINA . I AM CURRENTLY TAKING HCG DIET SUPPLEMENT AND AN IMMUNE BOOSTER VITAMIN .. DO YOU THINK THAT CAN BE THE CAUSE OF THE DISCHARGE ? MAYBE ITS CLEANING MY INSIDES ?