Gastric lavage is usually very little damage to the stomach, and there may be no damage, but if the number of gastric lavage, there may be more or less damage to the mucosa of the gastrointestinal tract, but there will be no lifelong damage, because the mucosa of the gastrointestinal tract is able to repair itself, the repair time is about 5-7 days, if it is afraid that the mucosa of the gastrointestinal tract often leads to long-term non-healing. After gastric lavage, you must eat a more liquid diet to avoid stimulating the stomach, not to eat spicy or pepper and other irritating foods, and try to eat a light diet, in addition to the appropriate application of gastric mucosal protective agents, such as aluminum ions caused by gastric drugs and proton pump inhibitors.