The method is for treating ear injuries of an animal with a bandage device that is mounted to the animal's head. The bandage device has a first holder portion and a first disc attached thereto. The first holder portion has a first opening and a second opening defined therein. The first ear is inserted through the first opening and the ear is placed on the first disc disposed over the second opening. A first layer is attached on the first holder portion so that a net of the first layer is aligned with the first disc. The net is placed on an inside of the first ear so that the ear is captured between the net and the first disc.