Getting a pet accustomed to any invasive grooming procedure is difficult. It’s often stressful for all participants, so when you are introducing a new grooming practice like ear cleaning, it’s best to try and ease your dog into the routine slowly.  An excellent place to start is by gently touching your dog’s ears to see how he reacts. You could also start by presenting him with a cotton ball (or whatever tools you plan to use), so he’s familiar with it.