I have 6 cats and 1 dog. I get the big 4.0 ml dose of Frontline and divide it between all of them.
For the last 2 months I CANNOT get rid of the fleas on Dexter. I've used Capstar twice and that helps as it kills what's on him, then I follow up with the Frontline and a couple of days later he's itching like crazy. His belly is white, so I can SEE the fleas...they are laughing and mocking me. My kitties are all mostly dark colored, so actually seeing fleas on them is harder, but I see "flea dirt" or flea poop. And this is AFTER applying Frontline. This last time I applied it between the shoulder blade AND at the tail root, both ends so to speak, and the fleas are STILL THERE. I'm going nuts. They seem to be gravitating AWAY from where I applied the Frontline. For example, the one that I saw on Dex last night was on the end of his paw at his toes, as far away from the Frontline as possible, yet alive and itching him.
The worst thing is that when I was at the vet last, I spent $140 on enough Frontline to last us a year, and I've got 10 doses left. And it's worthless.
Suggestions? Advice? HALP!!!!!!