this may sound extremely stupid and it may not work for this, cause the yeast might be diff, but when i was preg, i got thrush and a yeast infection, well diflucan, you can't take when you are preg, so i just suffered, then i got on this pineapple kick (you know the cravings, lol) and ate a ton of fresh pineapple and they both cleared up! they didn't actually get cured, cause when i quit eating it, they came back, a little, then i went and ate some more pineapple and this time they were gone.
I have no idea if it would work for that, because it's outside the skin, and it may not even be the same kind of yeast, but i don't suppose it would hurt to try. Just be careful cause pineaplle can be stringy, maybe you could try juice first.
hope she feels better!
other than that, i think that the wipes are probably the best bet, but i dont know if you know this, cause i didnt' if you use those lollipop looking no sting things, they have about three times the stuff in them that the wipes do, so you should use about three wipes to get that effect. I had a lot of trouble wtih the no sting stuff and my wafer not sticking too.