Otitis externa, commonly known as swimmer's ear, is a painful condition characterized by inflammation of the external ear canal. It often occurs due to infection or irritation and can be described as follows: Otitis externa is an inflammatory condition of the ear canal, typically caused by water exposure, bacterial or fungal infections, or skin conditions. Common symptoms include ear pain, itching, redness, and swelling of the ear canal. Discharge, temporary hearing loss, and discomfort when moving the earlobe or jaw may also occur. Prompt medical attention is advisable to prevent complications and alleviate symptoms.