Otitis Externa, commonly known as swimmer's ear, is an inflammation or infection of the outer ear canal. This condition can occur when water remains in the ear after swimming or bathing, creating a moist environment that promotes bacterial or fungal growth. Symptoms often include itching, redness, swelling, and pain in the ear. Treatment for Otitis Externa typically involves cleaning the ear canal and using antibiotic or antifungal ear drops to eliminate the infection. In some cases, pain relief medications may also be recommended. Preventive measures include keeping the ears dry and avoiding inserting objects into the ear canal.