Frontline didn't work for us either but the Advantage II knocks them out in a day. We did try some of the home remedies first but while 2 were clear the fleas just loved Link so we just went with it to save him from the constant problem.Thank you for the advice ! I just mixed 1/2 cup ACV and 1/2 cup water. Poured it into a spray bottle and shook it. I squirted some on a paper towel and rubbed it on him where he was itching the most. I didn't want to do a whole lot right at first. Just not a big fan of poison. My vet gave me some flea stuff that takes care of ticks as well. Frontline didn't work on him. Poor guy I feel so bad for him.