Eczema of the external auditory canal is a condition that is characterized by dryness and peeling of the outer ear. The cause of external ear eczema has not been determined, but there are many triggers, and some people who are susceptible to dermatitis are more likely to contract external ear eczema. The causes of this disease include inattention to ear cleaning and metal allergies. Prevention can be achieved by paying attention to rinsing the ears with warm water in daily life, keeping the ears away from metal products, and keeping the ears warm during the cold winter months. Eczema of the external ear canal is a disease that occurs in the outer ear and ear canal. Patients with eczema of the external ear canal will have dryness around the ear and scaly skin, which will be accompanied by redness and itching. In most cases, the symptoms are mild to moderate, but in some cases, the itching may increase and the skin becomes darker, the dryness deepens, the scaly skin turns into rough, scaly patches, and in some cases, bleeding may occur. It is important to avoid touching the lesion at this time, as this may lead to increased inflammation, bleeding and eczema symptoms. Eczema of the outer ear is usually not very serious, but the accompanying itching can be excruciating. With proper treatment, external ear eczema will be cured and will not have long-term effects.