I use Frontline Plus and had never had fleas on my girls and no problem with in. My Sheltie did get Lyme from a Deer tick. But my Vet told me useing any of these flea and tick products they could still get biten by a deer tick and get lyme. No product you use is going to be 100% (Kinda like the birth control pill for people being 99.9% there is alway a chance). |