OK, I know what the symptoms of ear mites are & I know a little bit about treating them (from my experince at the shelter), but that's about it. My little girl Maggie (I've had her for almost 3 weeks now) has ear mites. I was able to get some meds from the shelter, but do I need to treat all my kitties? and for how long do they need to be treated? Or if anyone knows of a good web site I can read about them I'd appreciate it.