How to eliminate vaginal odors for good?

You can't entirely: Vaginal odor is caused by an std or an overgrowth of anerobic bacteria in the vagina. See your ob/gyn to rule out trichomonas, chlamydia and gonorrhea. They can also test for bacterial vaginosis - the name of bacterial overgrowth that produces strong fishy odor. Once treated, never douche. Use mild soaps on the vulva and wear loose fitting clothes to avoid trapping moisture and bacteria.

Asking a lot but: Stop shaving, eliminate sugar, avoid receiving oral intercourse -it introduces all sorts of bacteria, use condoms or withdraw, keep periods short and light, no soap near the opening, eat whole foods, understand what natural scent is. That's a start.