Gastritis precautions include life management, emotional regulation, rational use of medication and so on. 1. Life management: gastritis diet needs to pay attention to light diet, avoid spicy stimulation diet, eat less sweets, avoid smoking and alcohol, etc., eat more fresh vegetables and fruits, supplement vitamins. Pay attention to avoid Helicobacter pylori infection, wash your hands diligently, avoid sharing tableware, pay attention to dietary hygiene, eat less roadside stalls. 2. Emotional regulation: Reasonable regulation of emotions, maintain a happy mood, avoid excessive stress, anxiety, tension and other bad emotions. 3. Reasonable medication: you can take acid-suppressing drugs, such as cimetidine tablets, omeprazole enteric-coated capsules, gastric mucosal protectants, such as colloidal bismuth pectin capsules, and if necessary, anti-Helicobacter pylori treatment, commonly used drugs include metronidazole and the above acid-suppressing drugs, gastric mucosal protectants. Drugs need to be used under the guidance of a professional physician, not to use drugs at will.