To prevent sinus stenosis, first of all, pay attention to dietary hygiene to prevent “disease from the mouth”. Secondly, we should wash our hands and disinfect regularly, pay attention to environmental hygiene, and keep the environment clean. Do a good job to prevent flies, mosquitoes, cockroaches measures. Because flies, mosquitoes and cockroaches carry a large number of pathogens, which can contaminate our food in the process of feeding, people may become ill after eating contaminated food, so eliminating flies and cockroaches is also an important measure to prevent gastrointestinal infectious diseases in summer. You should avoid eating foods that are too hard, too spicy, too salty, too hot, too rough and irritating. Diet with moderation and regularity, regular rationing, less and more meals, so that the food is fully salivary mixture, avoid overeating. Food should be chosen nutritious, easy to digest, soft and fine food, more food containing vegetable protein, vitamins. Acetaminophen, indoles, tetracycline, prednisone and other drugs should be avoided. Mental stress is a contributing factor to chronic gastritis and should be avoided. Mood disturbances and impatience can easily cause gastric mucosal disorders and gastric dysfunction. Therefore, emotional stress should be avoided as much as possible and tension should be lifted. The actual fact is that you can find a lot of people who are not in a position to get a good deal on a lot of things. The actual fact is that you will not be able to get a good deal on your own. Pay attention to proper rest and exercise.