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O K ! then I guess we're back to ask your vet. lol

I think that's where the OP heard about Revolution, at his/her vet's. Perhaps another way to put the question is whether it would be worth the $28 exam fee this vet seems to require. I'd say if you already bought the Advantage, no, it's not worth paying for another exam.
O K ! then I guess we're back to ask your vet. lol

I think that's where the OP heard about Revolution, at his/her vet's. Perhaps
another way to put the question is whether it would be worth the $28 exam fee
this vet seems to require. I'd say if you already bought the Advantage, no, it's not worth paying for another exam.
If the problem is fleas I'd agree with you there.
One of my cats got a large bald spot at the application site of her first Revolution dose.
So I don't use it anymore.
One of my cats got a large bald spot at the application site of her first Revolution dose. So I don't use it anymore.

Yes, according to the manufacturer about one percent of cats will experience hair loss at the site of application. That is the most common side effect of Revolution. But it's also a possible side effect with any of the spot-on parasite treatments.