Give her some plain (non-flavored) low fat yogurt everyday. It will not only help keep the yeast at bay but it will help any gas she may have. I give my dogs a tablespoon or so of yogurt in their Kong each day and then another tablespoon with their supper.
There really isn't enough biotics in yogurt to help a dog that has yeast issues. Also, if you are going to give yogurt ensure that there is NO sugar added or you are just making things worse. Get a good probiotic and give at mealtime (before/after according to directions). Cut out grains (treats included), fruits and veggies, ensure there is no sugar/carbs going into her system. Sorry but the med will probably do her system more harm than good, you would be better off to seek homeopathic help to heal her system as these things are mostly systematic issues.
Cami gives good advice, you really need to get down to the root of the problem and take a look at diet - raw would be the best for Juicy for her overall health and yeast issue.
Good luck