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Go back and read some of the messages and you will find many women eat yogurt daily to keep yeast infections in check. Your daughter should try it right away. Buy only the yogurts that say "contains active live cultures" of acidophilus, lactobaccilus which are "friendly" bacteria and are needed in the stomach to fight yeast infections. Taking antibiotics can destroy the good bacteria and acidophilus in yogurt will replenish it. Please have your daughter try it.