Helicobacter pylori infection requires eradication treatment, which often involves a quadruple therapy consisting of a proton pump inhibitor, a bismuth agent and two antibiotics. H. pylori is a bacterium that colonizes the stomach and is a causative factor in stomach disorders, predisposing to inflammation, ulcers or tumors in the stomach, and is mainly transmitted through fecal-oral and oral-oral routes. H. pylori infection can be eradicated by taking four combinations of anti-H. pylori drugs orally under the guidance of a doctor. 1. Proton pump inhibitors: common ones are omeprazole capsules, rabeprazole sodium enteric-coated tablets, pantoprazole sodium enteric-coated tablets and so on. 2. Antibiotics: common amoxicillin capsules, clarithromycin capsules, tetracycline tablets, metronidazole tablets, etc., choose two of them can be. 3. Bismuth: common bismuth preparations such as bismuth potassium citrate capsules or bismuth pectin. Combined use of the four drugs for about 2 weeks, most of them can remove H. pylori from the body, and stop the drugs for 1 month after the end of the treatment, and it is recommended to review. It is recommended that when Helicobacter pylori infection is present, it is important to visit the hospital in time and actively cooperate with the doctor’s treatment.