I bet the sores are from fleas too. I have had cats w/ them & when you put flea medicine on them they eventually disappear. One cat I had however kept scratching the scabs & they never healed (I guess maybe they itched as they healed, as scabs do on people sometimes.) he finally passed away from infection, but this was a very rare case. I would take him to the vet & try some flea medicine. The best I've found is Frontline +, it works great! Also, for the earmites, you can clean the ears w/ a mixture of vinegar & water (more water so it's not stinky) & this should clean them & help keep them from itching quite as bad, however, this will not kill the mites, you need medicine for that. Hope this helps!