With you dialating I would ask your doctor tomorrow, but they may recommend the same thing they normally do. Just some monostate, I'd get the pill shaped kind, not the cream.
Also, yogurt is supposed to be very good to treat yeast infections. And yogurt is always safe I would think.
I would be very careful with home remedies right now. You don't want to jeopardize your baby's health. Ask your Dr first.