The problem with flea infestation is that unless you get all the ones that have taken up residence in your home via rugs, furniture, etc., by flea bombing the entire place, the flea problem will continue.

You need to flea bomb BEFORE you bring your kitty back into the house. Then put Frontline on him. Otherwise the ones inside your house will be hopping the fur train again.

That's exactly the advice my vet gave me and it worked!!! I had an infestation after I moved into my friend's apartment with my Mollie Rose (then a kitten). The infestation was SO bad, Mollie Rose was anemic and actually could've died. Turns out my friend's dog was covered in them, as was our entire apartment. After spending over $200 for flea bomb stuff and taking the dog to the vet for a very serious flea bath, the fleas disappeared.