Food poisoning is an acute toxic illness caused by contamination of the food consumed by the patient with bacteria or bacterial toxins, or by food containing toxins. There are different clinical manifestations depending on the cause of the disease. First aid 1.If the time of eating is one to two hours before, you can use chopsticks or fingers to stimulate the pharynx to help induce vomiting and expel the poison as soon as possible. 2.If you have eaten poisoned food for more than two hours, but you are in good spirits, you can take laxatives to promote the excretion of poisoned food as soon as possible. 3.Drink a lot of water to dilute the concentration of toxins. 4.If food poisoning is caused by eating spoiled fish, shrimp, crab, etc., take 100ml of vinegar, add 200ml of water, dilute it and take it at once. Caution 1. When buying and eating packaged food, pay attention to the production date, shelf life and production unit of food. 2.When processing and storing food, separate raw and cooked food, and overnight food must be heated and cooked thoroughly before consumption. 3, cooking food and before eating to pay attention to hand washing. After contact with raw fish, raw meat and raw poultry must wash their hands again. 4.If food poisoning symptoms such as vomiting and diarrhea occur after eating, you should immediately save yourself.