A positive breath test for H. pylori indicates H. pylori infection and requires quadruple medication to remove H. pylori. Secondly, we need to pay attention to life and diet to avoid cross-infection and treatment failure. 1. Drug treatment: quadruple drug refers to proton pump inhibitor + two antibiotics + bismuth. Such as: omeprazole, amoxicillin, clarithromycin, bismuth potassium citrate. 2. Diet: Helicobacter pylori can be transmitted through saliva droplets, it is recommended to eat separate meals to avoid cross-infection. If family members are also infected, they should be treated together to avoid treatment failure. If the breath test is positive for H. pylori, it is recommended that the patient go to the hospital and be instructed by the doctor on the specific program and precautions to be taken.