If the patient eats a small amount of expired food and has only mild symptoms of abdominal discomfort, the situation can be observed by drinking a lot of warm water to promote diuresis, and the abdomen is not a big problem if it hurts briefly. However, if a large amount of expired food is consumed, the patient must go to the hospital for detoxification by means of gastric lavage. Usually, the gastric lavage solution is chosen by applying warm water and above 5000ml, and the patient who is awake can be induced to vomit, and the patient who is not awake can be intubated for gastric lavage. After gastric lavage, enemas are administered by means of catheterization, diuretics can be given for diuresis, and detoxification can also be done by infusion, such as injectable vitamin C, reduced glutathione and other drugs, all of which can play a good detoxification effect.