Simple swelling of the ear canal is considered to be caused by acute otitis externa or external ear canal boil infection. Patients usually have the bad habit of digging their ears frequently, and the disease starts rapidly, and patients will experience severe pain in the ear within a short period of time, and the skin swelling will affect their hearing in severe cases. In terms of treatment, depending on the severity of the disease, you can choose to take oral or systemic antibiotics, and it is generally recommended to choose cephalosporins as anti-inflammatory drugs. If possible, local physiotherapy treatment is also helpful for the recovery of the disease.