After 2 hours of painless gastroscopy, it is possible to resume normal drinking, because during the gastroscopy process, the subject will stimulate the trachea, epigastric cartilage, esophagus and other tissues, and premature resumption of food will not only aggravate the painful symptoms in the throat, stomach and epigastric areas, but even induce nausea, vomiting, acid reflux and other adverse symptoms. After gastroscopy, patients should pay attention to daily diet and life care measures to avoid adverse consequences. Firstly, they should choose more light and easily digestible food, such as millet porridge, rice soup, rotten noodles, etc. They should follow the principles of liquid, semi-liquid and hard food to reduce the stimulating effects on local organs and tissues and relieve the adverse symptoms. Secondly, we should try to maintain a regular and adequate rest, which will have a positive impact on accelerating the healing and repair of damaged tissues.