WebMD discusses ear mites in cats including symptoms, causes, treatments, and how they're spread.
I used to think pets that walked in circles and attacked their ears were cute, until I did a little bit of research about getting rid of ear mites (Otodectes cynotis). Ear mites are a bit scary if they’re allowed to do enough damage to your pet. As it turns out, cats and dogs can get an infection from ear mites if they aren’t treated, which their middle ear which then throws off their balance and either causes them to not walk straight or to walk in circles constantly. Worse still, ear mites have been implicated as the cause of allergic reactions similar to those of dust mites. In fact, many people who test positive for dust mite allergies also test positive for ear mite allergies. Considering how many people own pets, the potential for chronic allergies to be caused by an ear mite infestation is pretty high…and it’s miserable for your pets.
Hi, my name is Nuria. Looks like my first message disappeared from the web! Well, my question is: I have two cats infested with ear mites. One was infested more than one month ago and started being treated one month ago. The little one was infested by the first one and start being treated at the same time. I went first to the vet and he made the diagnose for ear mites then gave me Oridermyl to put in my cat's ears for one week. After one week, it didn't get better, and as I read the instructions and searched on line I realised that the medicine should be applied for 21 days, so I did. After that time, still didn't get better, so I search on line again for better medicines. I live in China, and vets are not particularly reliable here, so I decided to try myself. The only recommended medicine I could find here is Revolution (no tresaderm or milbemite anywhere) so I bought it. I applied it to them one week ago, and it seems like now they don't shake heads or scratch their ears anymore, but still they have a lot of dirt coming out from their ears. At the beginning, big, round and dry grounds, now just wet flat pieces, bigger and smaller, and what appears to be dead mites, together with a lot of brown wax. I clean every day and everyday seems to be the same amount of dirt there was the day before. Is this normal? How long is going to take to eliminate the dirt from their ears? Seems to be a bit better than before, and less painful for them, but I'm still afraid there is something wrong and that's why it doesn't really get clean. Are the mites really dead or not? It is possible all that dirt was accumulating there for so long time and just need to get it out or it is new dirt? Because it's really a lot! Should I apply a second dose of Revolution after one month of after 21 days, to avoid eggs for opening? If the second dose cannot get rid of the mites, what can I do? I wish I could find a good vet and the proper medicines here, but I'm afraid it's going to be difficult :( Thank you!
How to Treat Ear Mites in Cats | Animal Planet
How Do I Treat Cat Ear Mites? Symptoms, Causes &Treatment