Dietary aspects during the period of H. pylori quadruple medication should pay attention to the prohibition of alcohol and alcohol-containing food, avoid eating raw, cold and undercooked food, and avoid spicy and stimulating food and other aspects. 1. Abstain from alcohol and alcohol-containing food: Because the quadruple drug contains antibiotic drugs, it will cause disulfiram-like reaction with alcohol or alcohol-containing food, resulting in facial flushing, headache, chest tightness and nausea, palpitations (rapid heartbeat, often accompanied by panic) and other reactions. Difficulty in breathing may even occur, subsequently leading to death. 2. Avoid eating raw, cold and undercooked food: foods such as raw fish, sushi and sashimi are suitable breeding environments for this germ, which will aggravate H. pylori infection. Moreover, this disease is transmitted through oral-fecal transmission, if the food is not cooked, the pathogenic bacteria can not be eliminated and thus easily aggravate the condition. 3. Avoid spicy and stimulating food: spicy food such as chili, mustard, pepper, etc. can easily stimulate the gastrointestinal tract, weakening the gastrointestinal function, which is not conducive to the elimination of germs, and even cause gastritis, gastric ulcer and other diseases. In addition, it is also necessary to develop good eating habits, wash hands before eating, in the case of multiple meals should be used to share meals or use public spoons and chopsticks, and when there is a patient at home, dishes should be sterilized at high temperatures. The medication for Helicobacter pylori infection must be applied regularly under the guidance of a doctor, and should not be applied on one’s own.