Impetigo in the Ear Canal: What to Know

Impetigo usually affects the skin, so a crusted sore at the ear opening may involve the outer ear rather than the canal itself. Scratching, earbuds, hearing devices, or dermatitis can damage the skin and permit infection. Pain, discharge, blocked hearing, or swelling may also point to another ear condition that requires a different examination and treatment. Do not assume every crust is impetigo.

A clinician can inspect the outer ear and canal safely and decide whether a skin treatment, ear-specific medicine, or another approach is appropriate.

Keep the ear dry and clean only the visible outer skin gently. Do not insert cotton buds, fingers, oils, antiseptics, or creams into the canal unless prescribed for that exact use. Avoid earbuds and shared headphones while the area is sore. Wash hands after touching the ear, do not share towels, and avoid picking crusts. If treatment is prescribed, follow the instructions carefully; a skin antibiotic is not automatically suitable for the ear canal.

Seek prompt medical assessment for increasing ear pain, swelling, discharge, reduced hearing, fever, spreading redness, or tenderness behind the ear. Get urgent help for severe pain, rapidly worsening swelling, dizziness, facial weakness, or a child who appears very unwell. People with diabetes or immune problems should obtain advice early.

Ask whether the sore is on the outer ear or inside the canal, whether the eardrum can be seen, which product is safe, how to keep water out, and which changes require urgent review.