wash properly. don't use normal soaps down there as it upsets the ph balance and could lead to problems. if you have a fishy odour it could be bacterial vaginosis, nothing some antibiotics won't put right. Maybe you could buy products meant to clean that area specifically like femfresh or something similar.

You are not supposed to use douche b/c it kills good bacteria that keeps your vagina protected.

Submurge yourself in water (bath) a couple of days a week & inbetween use vaginal wipes very gently on your vagina & all around it especially the inside top part of your legs.

I find that Betadine douche works best. It has a germ killer in that could be the cause of the unwanted smell.

put on perfume