Advantage is what I've always used, with no problem. An application
lasts for one month. It both kills present fleas and prevents future infestations.

Stay away from Hartz products if you value your cat's life and health.

Some of my cats go out a little, too. Recently, they brought in some
fleas and, of course, they all got fleas. I use Advantage and that
takes care of the situation. don't know how we ever lived without it. I
hve no faith in flea collars and, also, don't like Hartz products.

There are non chemical flea remedies out there.  You can use diamateous (sp)
earth, and you can use a mixture of borax and baking soda in your carpeting
which kills the fleas.  I used Advantage and it caused
reactions in two of my cats.  I used 1/2 a dose instead of the whole dose on
Elvis a few years ago when somehow we got fleas and that worked fine just
using 1/2.

Years ago I had two cats, both indoor only. When we adopted the second
one, she came with a large side order of fleas, so large that we had to
flea bomb the house (of course we took the cats elsewhere when we did
this). We lived in South Carolina at the time, and fleas were plentiful.

Interestingly, the older cat never got any of the fleas, even though at
one point they were so bad I sometimes saw fleas jump on my ankles! That
cat wasn't getting any flea treatment, but she'd been eating nutritional
yeast all of her life. She loved it sprinkled on her food and would wait
for me to add it before starting to eat.

From what I understand, fleas don't like the taste that n. yeast leaves
on a cat's skin. I suspect it might have to build up for a while before
it's effective, and of course, it would probably be better at keeping a
flea-free cat from getting fleas; I don't know how well it would rid a
cat of fleas it already has.

This is my experience; as always, your mileage may vary.

Good luck,
Irene

Get Advantage.

Cathy