Once a patient is diagnosed with H. pylori infection, prompt eradication treatment is recommended, the course of treatment is usually 10-14 days, and a review is required after one month of discontinuation of the drug. Helicobacter pylori is a spiral Gram-negative bacillus that is parasitic in the human stomach and duodenum and is associated with chronic gastritis, peptic ulcer, gastric cancer and other digestive tract diseases. Currently, a quadruple regimen is mainly advocated for this bacterium, which is a combination of 1 PPI (proton pump inhibitor), 2 antibiotics and 1 bismuth agent, and usually requires 10-14 days of treatment. The commonly used PPI in the clinic are omeprazole, lansoprazole, rabeprazole, etc.; the commonly used antibiotics are clarithromycin, amoxicillin, metronidazole, quinolone antibiotics, tetracycline, etc., which need to be combined with the antibiotic resistance situation in different places; the commonly used bismuth agents are bismuth potassium citrate, bismuth pectin, etc. Helicobacter pylori is highly contagious and can be transmitted through common eating, kissing, etc. If there are infected people at home, it is recommended to share meals and disinfect dishes.