When I get a YI, OTC products don't work too well for me. Some home methods that have worked well for me are:

Sit in the tub. Fill the tub with warm water about to your hip level. Add 2 cups apple cider vinegar (the kind from the grocery store is ok) and I also put in a squirt or twpo of povidone iodine solution (I get 8oz of it at w*lmart, it's more expensive elsewhere). The vinegar provides the proper acidic environment for the girly bits and the iodine sol'n is an antimicrobial. Get a good book and sit there for 1/2 hr. When I have a bad YI I do this am and pm. When not so bad, once a day. This really helps me a lot.

Another method that works well for me is to take a tampon that has a plastic applicator. I mix 1 part tea tree oil and 3 parts Vit E oil in a small squirt bottle. I dip the tampon tip into the abovementioned iodine sol'n and squirt a bit of the tea tree oil/vit E soln onto the tip and insert for up to 6 hrs. The tea tree oil is supposed to be good for YI problems.

I also take Azo Yeast tablets. ($5 for 60 tablets at w*lmart, I know w*lmart is evil, but I do get a few things there). I take one twice a day as maintenance and it seems to help keep the itchies under control.

Hope you feel better soon!