Yes, dogs can get swimmers ear, also known as otitis externa. It is a common ear infection in dogs that occurs when water remains trapped in the ear canal, creating a warm, moist environment that allows bacteria and yeast to grow. This infection can be caused by swimming, bathing, or any other activity that exposes the dog's ears to water. Symptoms of swimmers ear include head shaking, ear scratching, pain in the ear, redness and swelling of the ear canal, and a foul-smelling discharge from the ear. Treatment typically involves cleaning the ear canal, administering antibiotics or antifungal medication, and drying the ear thoroughly.