It's interesting that you should ask about Advantage. I've been
treating Little Miss with Advantage since I first got her. She was
badly infested with fleas and flea dirt. After a couple of months,
Advantage did the trick. No more fleas, flea dirt, or specks anywhere.

She started on the Atopica three weeks ago and was doing great. She had
stopped scratching, except for the occasional swipe and nibble. Then
when I did the Advantage treatment, she started scratching again. It
was very noticeable scratching. After a couple of days, it went away
again. I talked to the vet about it, and no more Advantage. I guess it
travels along the skin. He suggested Revolution instead, since it
travels along the hair follicle. I'm not a scientist so it was a little
hard to follow the biology of the whole thing, but I understood the
gist of it. No more Advantage.

I'm a little leery about treating her next month cause her scratching
seems to be going away and her skin and hair are growing back so
nicely. But then, we live in flea country, during flea season. She goes
outside for walks, and I need to do something or else the scratching
will come back, only it might be worse.  I thought I would try
Revolution next month, make sure I have Atopica on hand, just in case
she starts scratchng again, and see what happens.

It's a mystery, but I think we're getting closer to finding out what's
irritating her.

Have a great day!

Cheers.

Little Missy's Mom, nursemaid and slave to the ever endearing Little
Miss.