
Is your dog scratching her ears? Shaking her head? Does she have a sour, yeasty smell? She could be one of the two out of five dogs who suffer from chronic, recurring ear infections. The cause is often a combination of allergies, bacteria and yeast. One major source of allergies could be the ingredients in your dog's food. What you feed your pet could cause an allergic reaction that inflames his ears, causes him to scratch and creates an infection that is painful, persistent and difficult to treat.