We have 3 cats. There are fleas. They are all treated with Frontline combi. The house has been sprayed and sprayed with Acclaim, and hoovered to within an inch of its life.
This works. On two cats.
Frontline does not work on one of our cats. She is flea ridden. It is horrible. We catch them and drown the little buggers, but why? Why does it work on two cats, and not on the other?
How can she do that? How can she render the flea treatments ineffective??