You wanna purchase a Seresto collar. I have a pure breed Border Collie that had numerous ticks on it this spring when the weather broke and was using that Frontline Plus. I must of picked off 3 ticks in 24 hrs. at one point. I purchased the Soresto collar and have only seen one that just fell off on its own. The collar lasts for about 8 months. It's the best thing I have ever used for fleas and ticks control,