There is no specific age requirement for preauricular fistula surgery. If there is a history of infection, surgical excision after acute infection control; recurrent infected fistula, skin ulceration caused by infection, should first control the acute inflammation before surgery; local abscess formation should be incised and drained, and then operated after inflammation control. 1. Children patients: if the preauricular fistula acute infection, it is recommended to use antibiotics such as penicillin and other anti-infective treatment under the guidance of the doctor, if the formation of abscess, it is recommended to do incision and drainage, and regular review after surgery. 2. Adult patients: If the adult preauricular fistula inflammation, you can control the acute inflammation and then preauricular fistula resection, after surgery, regular review and change of medication. Local abscess formation, should be incised and drained first, pending infection control before surgery. Infection recurrence, conservative treatment can not be completely control, can be in the acute infection at the same time to do abscess incision and drainage and fistula resection, but the operation is relatively difficult, intraoperative bleeding is relatively more. 3. Simple preauricular fistula: If it is a simple preauricular fistula, there is no acute infection and inflammation, generally do not need surgical treatment. If there is secretion from the fistula, it is recommended to use iodine povidone to rinse it out, and keep the area dry in daily life to avoid stimulating the fistula opening. Fistula in front of the ear is a congenital disease, the specific optimal age for surgery is not strictly required, need to be under the guidance of the doctor according to the condition of the selection of targeted treatment programs and timing of surgery. Drug treatment should also be carried out under the guidance of a doctor to avoid serious consequences.