I am not sure of what product to suggest. Do you have a lot of soilage or just a small amount? The reason I ask is because there is only one way to get rid of yeast infections forever. ( I mean, after you use the medicine they give you... you have to use that first!) But the only way to avoid yeast infections is to air your area out. And then means, long periods of time with no underwear. LIke when you sleep. When you are home in your pajamas on the computer, drinking coffee, watching TV. I discovered this when I was younger and every chance I get, I do not wear underwear and I let that area breathe. I got a couple of cute little house dresses to wear if I don't feel like just hanging out in my nightgown.
So, that brings me back to the soilage at night issue. If it's not a lot, then you can invest in some thick soft towels and just lay them under you when you sleep. You will wind up doing more laundry, but you will avoid yeast infections. Get a washable mattress pad as well, but again, a thick towel will catch the leaks at night. You may need several during the night and you may need to limit your food intake after a certain hour at night as well.
I know that if I am out and about too much and aren't mindful of airing out things, I get a bit of itching and yeast there as well. I can catch it before it become full blown by what I just said, although recently I was given some creame to knock it out again.
Good luck.