I live in FL, THE FLEA CAPITAL OF THE WORLD, tried the Dawn original, Frontline, Advantage, none worked. Tricksie does not run around in the grass or dirt, she is in the house or on concrete around the pool and courtyard, but she still had fleas, the Vet put her on Comfortis that is made by Lilly. She has never had a flea since starting this. You are suppose to give it every month but I check her over and will not give it to her unless I see a flea, that has only happened once.
