Swimmer's ear is an inflammation and infection of the ear canal. It occurs when the protective film that covers the ear canal is removed. Swimmer's ear often develops when excess water enters the ear canal. But other conditions can cause swimmer's ear, including allergies, forceful ear cleaning, and skin problems. Symptoms can include itching, pain, and a feeling of fullness in the ear. Follow the links below to find WebMD's comprehensive coverage about how swimmer's ear is contracted, what it looks like, how to treat it, and much more.