Positive carbon 13 breath test suggests the presence of Helicobacter pylori infection in the stomach, which can be seen in gastritis, gastric ulcer and other diseases, and its treatment includes triple or quadruple therapy, which is to use anti-infective therapy, antacid therapy, gastric mucosa protection therapy and so on. 1. Anti-infection treatment: it is recommended to use two anti-infection drugs jointly, such as amoxicillin combined with clarithromycin, amoxicillin combined with levofloxacin, tetracycline combined with metronidazole and so on. 2. Antacid therapy: commonly used proton pump inhibitors, including omeprazole, rabeprazole, lansoprazole, pantoprazole and other drugs. 3. Gastric mucosa protection therapy: bismuth potassium citrate, bismuth pectin and other bismuth agents are commonly used. The use of the above drugs need to be used in accordance with the course of treatment, standard dose application. Drugs need to be used under the guidance of clinicians, unauthorized use of drugs is prohibited; the presence of a positive carbon 13 breath test, it is recommended to go to the hospital in a timely manner.