Gastric lavage is generally a way to excrete the stomach contents through the insertion of a gastric tube or other means to conduct the corresponding toxicological tests. Gastric lavage is mainly for drug poisoning, alcohol poisoning or food poisoning, and the stomach contents should be removed to prevent the poisoning symptoms from deepening or worsening. This is usually operated in hospitals, and nowadays they use automatic gastric lavage machines, which automatically control the amount of water coming out or coming in. Of course, when lavage, the patient will feel some discomfort, because the stomach tube inserted will be thicker, but in order to cure the disease, may have to endure a little. Of course, the premise is to try to keep us from being in this state of intoxication, so that you can avoid this pain.