Notes after maxillary sinus lift are diet, avoid strenuous exercise, take medication, wound care, regular follow-up and so on. ⒈ diet: after maxillary sinus lift patients should be light and easy to digest diet, such as milk, eggs, lean meat, apples, etc., to ensure balanced nutritional intake. At the same time, avoid eating too spicy and stimulating food. 　　　Avoid strenuous exercise: After maxillary sinus lift surgery, patients should not blow their nose for a short period of time, do not press their nose with their hands, and do not engage in strenuous exercise, such as long-distance jumping, high-jumping, long-distance running and so on. Take medication: In order to prevent infection after maxillary sinus lift, you can take anti-inflammatory drugs such as amoxicillin and metronidazole orally under the guidance of your physician. Singing wound care: Maxillary sinus lift will cause some damage to the skin and swelling during the operation, so you need to keep the wound and the surrounding skin clean and dry after the operation to avoid inducing bacterial infection. 5. Regular follow-up: After maxillary sinus lift, patients should follow the doctor’s instructions and go to the hospital regularly to check the wound recovery. It is recommended that patients strictly observe the above postoperative precautions to avoid abnormalities affecting the prognosis, and if other abnormalities occur during the recovery period, they should go to the hospital in time. The above medications should be used in accordance with medical advice.