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Review title: Something wrong with Frontline cocktail
Product review: I never used to have a problem with Frontline, but as of late Frontline has not worked on my two dogs. I don't know if my dogs have some sort of super flea that won't die or what. But I have to apply flea treatment on my dogs every two weeks and even then it doesn't work well. I've never had this problem before. Frontline always worked, but not anymore.I've read that fleas can become immune to certain products. It looks like the fleas in my neighborhood are immune to Frontline.
