H. pylori bad breath generally refers to bad breath caused by H. pylori infection, which can be treated by medication and general treatment. 1. Medication: When H. pylori infection causes halitosis, it is necessary to carry out quadruple medication under doctor’s guidance, which includes two kinds of antibiotics, one kind of bismuth agent and one kind of proton pump inhibitor, among which the antibiotics include metronidazole, tetracycline, furazolidone, etc., the proton pump inhibitors include omeprazole, pantoprazole, etc., and the bismuth agent includes bismuth pectin, bismuth potassium citrate, etc. 2. General treatment: When H. pylori infection causes bad breath, you need to do a good job of cleaning your mouth, develop the habit of brushing your teeth in the morning and evening, keep brushing your teeth for about three minutes each time, and rinse your mouth after meals. When H. pylori infection causes bad breath, it is necessary to actively carry out examination and treatment, the delay may also induce gastritis, gastric ulcer or even gastric cancer and other diseases.