Ok so, our first cat who's now like... 4 years old, recently has been picking at his ear with his hind legs quite often, it's usually one ear more than the other. When he was only 1y/o we took him to a vet for a stomach infection and the vet gave me medication for ear mites which he had. Followed the medication instructions and cleaned out all his ear mites at the time. Gf and i are worried that his ear mites may have come back and that's why he's picking at them, or we're not sure if it could be extensive wax build up. Before we take him to a vet, we wanted to know if ear mites are definitely possible for them to come back even thought he's been indoors since we got him, or he could be just in need of cleaning? Any recommendations for ear cleaning as well? We're planning on going to the local pet store to pick up a cleaner and try it out to see any results. We can't really afford a vet visit at this moment due to all the christmas shopping so we wanted to try that out first.