Keeping your German Shepherd Puppies ears clean is very important. Maintaining clean ears will prevent ear disease. Check your German Shepherd Puppies ears weekly and clean routinely. To clean the ears, use an ear cleaner. Apply the ear cleaner into your German Shepherd Puppies ear canal. Gently massage the base of the ear for 15-20 seconds to soften any dirt. Wipe out the loose dirt using a cotton ball. Repeat until the ears are completely clean.