infections of the mouth or vagina are not likely to be cured by eating yogurt - at least not in a period of time likely to make your feel comfortable.
Yeast overgrowth in the digestive tract is often a result of taking oral broad-spectrum antibiotics that kill both bad & good bacteria
. Active culture yogurt can help replenish the supply of good intestinal bacteria that crowd out yeast.
Answer assisted by Ken Starnes, Medical Student