Many dogs have some type of eczema. It can occur anywhere on a dogs skin, including the inside and outer edges of their ears, which is one of the most commonly affected areas. Canine eczema is divided into two major categories: wet eczema and dry eczema. When a dog has wet eczema, excessive moisture builds up in the afflicted area. On the other hand, if your dogs ears are dry and flaky, its probably safe to assume they have the most common type of dry eczema, which is ...