Loading... Please wait...Routine home dog ear care is very important to the health of your dog. This will help keep your dog’s ears healthy and pain free. If you see signs of trouble you may be able to head them off before they require an extra visit to the vet. Excessive wax, foul odor, redness, constant scratching, excessive matting of hair in the external ear, rubbing the ears against other objects, head shaking, and disorientation can all be signs of ear problems.