Diffuse External Otitis (Swimmer's Ear)

Diffuse otitis externa (swimmer's ear) is inflammation/infection of the external ear canal, often after swimming, causing itching, pain on tragal pressure, canal edema, and discharge. It is usually bacterial (Pseudomonas/Staphylococcus). Treatment: clean the canal; topical antibiotic-steroid ear drops; keep the ear dry; oral antibiotics if cellulitis/systemic; avoid cotton swabs.

Common Symptoms

Itchy/painful ear canal; pain on tragal/pull; discharge; canal edema; post-swimming

Causes and Pathogenesis

Moisture/maceration breaks canal skin, allowing bacterial infection/inflammation.

Treatment

Clean canal; topical antibiotic-steroid drops; keep dry; oral antibiotics if cellulitis

Preventive Measures

Dry ears after swimming; avoid cotton swabs.

Department to Visit

It is recommended to visit the Otolaryngology (ENT) department; an appointment can be booked on this platform before the visit.

Warm reminder: The above information is for health science reference only and cannot replace professional medical diagnosis. If you have related symptoms, please seek medical attention at a regular hospital promptly.