H. pylori is the most common bacteria in the stomach, using the recommended quadruple drug treatment of H. pylori, two drug treatment program is suitable for specific groups of people under the guidance of a doctor to take medication. Currently for the treatment of H. pylori infection, often choose quadruple therapy, that is, proton pump inhibitors (for example: omeprazole, lansoprazole,, rabeprazole, etc.) plus bismuth (for example: bismuth potassium citrate, bismuth pectin, etc.) plus two antibiotics (for example: amoxicillin, clarithromycin, etc.). For those who are infected with H. pylori, in the process of applying quadruple therapy treatment, it is necessary to standardize the taking of medication to avoid omission and misuse, which may lead to eradication failure. Two-combination therapy is not the mainstream treatment program for H. pylori, and is only suitable for specific groups of people to take medication under the guidance of a doctor.