If a cat has ear mites, there may be ear mite residue on items it has come into contact with. Therefore, if a cat has been on the bed, it may have ear mites. When treating ear mites in cats, not only should the cat's body be cleaned, but everything the cat has used or come into contact with should also be strictly disinfected. During treatment, try to isolate the sick cat until the ear mites are completely cured before resuming contact. 
When a cat has ear mites, there will be a lot of black earwax in its ear canal, and some of it may even have an odor. Therefore, pet owners should clean the earwax first. Pet owners should prepare some ear oil, put a few drops into the cat's ear canal, and then gently massage the base of the cat's ear. After the owner lets go, the cat will shake out the earwax on its own. Then, the owner can use a clean cotton swab to clean the earwax from the cat's ear.
Some cats suffer from persistent ear mites that are difficult to cure because their owners haven't maintained a clean living environment. When a cat has ear mites, pet owners should thoroughly clean the house, inside and out. Owners can use pet-specific disinfectant to mop the floor, then open windows for ventilation and keep the room dry.