Most dogs should have their ears cleaned every two to four weeks. Dogs with floppy ears, like Basset Hounds, Cocker Spaniels, and Goldendoodles, are especially prone to ear infections because their ear shape traps moisture and reduces airflow. Signs that your dog's ears need attention include head shaking, scratching at the ears, a noticeable odor, redness, or visible dark discharge inside the ear canal. Staying on top of regular ear cleanings is one of the easiest ways to prevent painful infections that can become serious if left untreated.