There is some evidence that Frontline will control ear mites.  But I've
never used it.

I've always used Revolution? on my inside cats, and it eliminates them
easily.  However, with Revolution there is a bothersome statistic:  one in
thirty cats will lose a small patch of hair where the drops are applied
behind the head/neck.  I applied it to all my cats (25 at the time) and sure
enough, one of them lost hair in the area.  That was three years ago and the
spot has not haired over.    But no ear mites.

For my outsider (feral) cats, I put a prepared mixture of Ivermectin in
their separate dishes of food about every three months.  I inspect them best
I can when feeding, and the ears seem to stay unscathed.  A reddened ear or
a cat that continually scratches his ear or shakes his head is a sign of
mites.

Your vet can provide either product.

--Geno<who knows cats like the palm of his foot>Royer

I worked for a vet for a number of years, and you need ear mite med's to
get rid of ear mites, they are nasty little critters to get rid of, but
Advantage and Frontline are really not for ear mites.

Good luck, and I hope you can get rid of those nasty mites soon,

Aimee