I am a bit paranoid about the deer ticks, I hate them and the diseases that they carry. We put Frontline on Chance. I am always relieved when the ticks go into hibernation, and we can give Chance a rest from the Frontline and the chemicals it contains. Both Far Guy and I are continually searching Chance for ticks. If we find one, Chance must inspect it..he smells of it and then shakes his head..and drools.