There are a number of causes of ear infectionindogs and it is best to have your vet examine your dog's ears to determineifthe cause of ear irritation is ear mites or another infection. (vetinfo.com)
Many Chronic Canine Skin & Ear Problems Require a Simple Switch in Food Not rated yet I just wanted to contribute that I have found in approximately 9 out of 10 cases where dogs are experiencing chronic hot spots, minor consistent ear irritation / itching / te... (dog-health-guide.org)
Parasites commonly cause ear irritation in dogs. (petwave.com)