Food safety knowledge of primary school students: To prevent food poisoning, we should first pay attention to personal hygiene, so as to take a bath, wash clothes, cut nails, have a haircut and change sheets and quilts frequently (once a month). Develop a good habit of washing hands before and after meals and not overeating. Secondly, do "six don't eat": don't eat cold food, unclean fruit, spoiled food, meals without high temperature treatment, raw water and snacks. Then we should pay attention to identifying the quality of food from the food label, and choosing safe food is the first level to control "disease from mouth to mouth". How to prevent food poisoning 1, wash your hands before and after meals; 2. Wash and peel the fruits before eating; 3. Don't buy food of unknown origin and beyond the shelf life; 4. Don't buy food from small shops or roadside stalls without hygiene license and business license (especially those without sealed packaging); 5. Don't eat food that has been confirmed to be spoiled or suspected to be spoiled; 6. Don't eat food that you know that preservatives or pigments have been added, but you are not sure whether the added amount meets the food hygiene and safety standards. The incubation period of recognizing the characteristics of food poisoning is short: usually a few minutes to several hours after eating. Gastrointestinal symptoms: diarrhea, abdominal pain, some accompanied by vomiting and fever. If the above symptoms appear, you should doubt whether it is food poisoning, report to the class teacher in time, and the class teacher will take corresponding measures to go to the hospital at home in time. Prevent food poisoning and develop good hygiene habits, wash your hands frequently, especially before and after meals, and use sterile soap and hand sanitizer; Do not eat cold and unclean food; Don't eat spoiled leftovers. First aid method Once food poisoning happens, go to the hospital immediately, and don't take medicine by yourself. If you can't go to the hospital as soon as possible, you can take the following emergency measures: 1, vomiting: If the food is eaten within 1 to 2 hours, you can take the method of vomiting, take 20 grams of salt, add 200 ml of boiling water, and drink it once after cooling; If you don't vomit, you can drink more times to promote vomiting. You can also use fresh ginger100g, mash it to get juice, and take it with 200ml warm water. If you eat bad meat, you can take "ten drops of water" to promote vomiting. Chopsticks and fingers can also be used to stimulate the throat and cause vomiting. 2, catharsis: If the patient eats for more than two hours, the spirit is not bad, you can take some laxatives to urge the poisoned food to be excreted as soon as possible. Generally, 30 grams of rhubarb can be used to achieve the purpose of relaxing bowels once decocted. 3. Detoxification: If food poisoning is caused by eating spoiled fish, shrimp and crabs. Take vinegar 100 ml, add 200 ml of water, and take it once after dilution. In addition, perilla 30g and licorice 10g can be decocted once. If you eat spoiled drinks or preservatives by mistake, the best first aid is to fill your stomach with fresh milk or other drinks containing protein.