Half an hour after the wisdom tooth extraction, the patient should spit out the cotton ball or roll that is compressing the mouth, and theoretically you can drink water at this time, but you need to be careful that the water temperature is not too hot. However, it should be noted that the water temperature should not be too hot, because the hotter temperature may cause bleeding due to the expansion of the blood vessels of the extraction wound, which is not a big risk, but it is better to avoid it as much as possible. In general, we do not have much restriction on drinking water after tooth extraction, but we generally recommend eating 2 hours after tooth extraction. This is mainly due to the problem of anesthesia. Generally, the anesthetic we commonly use for tooth extraction will act in the oral tissues for about 2 hours, and during the time of the anesthetic, the patient will feel that the gums and lips and teeth are numb. Eating too early may result in cheek biting or tongue biting. From this perspective, eating is something that should be recommended a little later. However, drinking water is generally not involved in this issue, and you can theoretically drink water after the extraction and spitting out the pressure.