I have two cats, one female who is 2.5ish years old and one male kitten who is about 9 weeks old. Our environment is flea-free, as the female has never had fleas and is both an outdoor and indoor cat.
Unfortunately, the male kitten has fleas. I am about to start a Frontline Plus treatment on it. So far we have kept the cats separated to prevent fleas from jumping to the female (the male has been kept in a rather large master bathroom). My question is, how soon after the first Frontline Plus treatment can I let the kitten out to the rest of the house? I want to avoid a chance at spreading fleas, but it's also a bit of a hassle to make sure the kitten stays isolated.
Thanks for the help.