My neighbour found out that her dog (a schnauzer) could hardly hear, so she took it to the veterinarian. The vet found that the problem was hair in the dog's ears. He cleaned both ears, and the dog could then hear fine. The vet then proceeded to tell the lady that, if she wanted to keep this from recurring, she should go to the chemist and get some "Nair" hair remover and rub it in the dog's ear..