Stomach acid and halitosis should be treated separately. Stomach acid is mainly due to the increase in acidity caused by the increased secretion of gastric glands and is usually common in cases of GERD or chronic gastritis. This condition requires the administration of PPI inhibitors or magnesium aluminum carbonate tablets to neutralize stomach acid symptomatic treatment, commonly used drugs such as omeprazole and rabeprazole. There are two possibilities for bad breath, one is due to gum problems, oral problems, and requires consultation with the dentist at the local hospital. The other is due to H. pylori infection of the stomach, often perfect C13 or C14 breath test, if the Dpm is greater than 700dpm/mmol, anti-H. pylori drug treatment is required, the clinical common gastric triple or gastric quadruple drugs. The so-called gastric triad mainly refers to the PPI inhibitors omeprazole, rabeprazole, pantoprazole to choose one, antibiotic drugs amoxicillin capsules, metronidazole or clarithromycin, three antibiotics to choose two, and finally the total of three anti-H. pylori drugs.