 Frontline Plus Not Working????
Is anyone having an issue with Frontline Plus. I have been using this on my 4-year-old since she was 1 and the puppy has just had his second application on the first of this month. They both have fleas. Either the fleas are becoming immuned to this product, or it is simply not working. I would love to hear some of your experiences with Frontline. Thank you... Lisa |