Twenty days after the pharyngeal cyst surgery is still painful, it is recommended to go to the ENT department of the hospital as soon as possible for follow-up examination and treatment as prescribed by the doctor. It may be related to poor healing, secondary infection, etc., which can be relieved by medication (cefoxitin, etc.) and debridement. 1. Poor healing: after surgery, the local mucosal tissues in the surgical area need to recover slowly, if the wound is relatively large, the recovery time will increase accordingly, such as daily care is not in place, it can also lead to prolonged healing time, so at this time, you may also feel the pain. You should observe more, pay attention to adjust the diet structure, avoid eating stimulating food, and avoid eating too hard, too hot. 2. Secondary infection: If bacteria invade during the recovery process, it will lead to secondary infection in the surgical area, causing redness, swelling, pain and other phenomena. Cefixime, roxithromycin, etc. can be taken orally for treatment, and patients with a history of drug allergy are prohibited. If necessary, it is necessary to follow the doctor’s instructions for debridement. Due to the complexity of the etiology, patients should consult a doctor in time, do the appropriate examination, and strictly comply with the doctor’s instructions for treatment.