External ear canal boils are difficult to heal on their own. External ear canal boils, also known as limited external otitis, are mainly manifested as purulent inflammatory infections within the skin of the external ear canal, clinically caused by Staphylococcus aureus. Patients experience severe ear pain, and once the boil forms an abscess and breaks down locally, there are some changes associated with the ear canal such as pus flow and bleeding. For this disease, active treatment should be given instead of waiting for the disease to heal on its own. Clinically, antibiotic topical application treatment and oral or intravenous application of anti-inflammatory medications are needed. If the boil forms a localized pus, a local incision and drainage is needed to release the pus and to change the medication daily and other related treatment treatments. If the boil is not treated, further expansion of the boil will cause diffuse redness and swelling of the entire ear canal, which may lead to otitis media and other related diseases.