Helicobacter pylori infection can be cured by taking medicines such as bismuth pectin, amoxicillin, metronidazole and omeprazole. Specifically should be under the guidance of the doctor to choose the appropriate drugs. Eradication of H. pylori commonly used quadruple therapy drugs have a bismuth + two antibiotics + a proton pump inhibitor. Commonly used bismuth agents are bismuth pectin, bismuth potassium citrate granules, etc. Antibiotics are amoxicillin, metronidazole, clarithromycin, etc. Proton pump inhibitors are omeprazole, pantoprazole, rabeprazole, etc. Some patients are allergic or tolerant to some of the above mentioned medications and may not be completely cured if they do not take the right medication and follow the doctor’s instructions strictly. In addition, failure to take the right medication may lead to damage to the gastric mucosa and serious complications such as gastric ulcer, gastric hemorrhage, and atrophic gastritis. Helicobacter pylori infection, you need to choose the right medication under the guidance of a doctor, according to your own situation, take enough courses of treatment, do not blindly take medication, so as not to delay the condition.