ughaa. I hate fleas! you might want to scrub all of the flea dirt/fleas off of them (maybe even get them flea dipped) and clean the house right before applying the Frontline, just in case! Gonzo has been on Frontline for over a year, and he has never had any fleas I LOVE that it doesn't smell at all, too. . ew. . the bug spray smell sucks

Frontline is SOO much better than Hartz! good idea!! Also, Hartz rawhides might not be great, they're made in Brazil, or China, which means they may contain toxins. There are a lot of American-made safer rawhides that you can find at the grocery store.