Milk, as a liquid diet, is rich in calcium and nutrients and can be consumed by patients after wisdom teeth extraction. Milk can be consumed not only on the second day, but also on the day of wisdom tooth extraction and post-operative eating. However, it is important to drink more water after drinking milk or eating food on the same day to keep the mouth clean. Patients are not recommended to brush and rinse their teeth within twenty-four hours after wisdom tooth extraction, so drink some water after eating twenty-four hours after wisdom tooth extraction to maintain oral hygiene. After twenty-four hours, the blood clot corresponding to the extraction wound stabilizes, and then you can consider rinsing and brushing normally after eating.