Ear Mite Remedies

I have a cat that will not allow me to put any kind of liquid into his ears. Even if somebody holds him down for me, he's too strong and goes nuts when the liquid hits his ears. I've found the best way is to rub vaseline inside his ears while petting him. He doesn't seem to notice, and even when he does, he doesn't mind too much. It seems to work almost instantly suffocating the mites. After one application, he stops scratching, but I do it each day for a week until I'm sure they're gone.