A congenital preauricular fistula can remain uninflamed for the rest of one’s life, and sometimes the person is not aware of the fistula and it is only discovered during a physical examination. This small, non-inflamed hole does not affect the appearance and should not be treated. However, once an infection occurs once, it will recur in the future. In case of acute inflammation, antibiotics should be used to control the inflammation and local hot compresses should be applied. If an abscess has formed, an incision and drainage should be made at the hospital. When the acute inflammation has passed, especially in patients with recurrent inflammation and suppuration, fistula removal surgery should be performed. This surgery is not major, but the epithelial tissue around the fistula must be completely removed, otherwise it is prone to recurrence. The most fundamental treatment for preauricular fistula is surgical excision of the fistula and its connecting capsule together. If infection has developed, surgery should be performed immediately after controlling the infection. If the fistula is not infected, do not squeeze it with your hands and wipe the mouth with 70% alcohol to protect it from infection. Some people find such fistulas and often squeeze out the secretions with their hands, which is not the right approach. The clinical inflammation of the fistula is caused by squeezing, so it is forbidden to squeeze it with your hands to avoid inflammation and pus.