For children with smelly mouth symptoms, can be used to eliminate food and stagnant drugs, H. pylori infection caused by the application of triple therapy, such as amoxicillin, omeprazole, clindamycin and other treatment, as follows: 1. The reason why some children have smelly mouth is due to functional indigestion caused by eating more meat food, such as eating less vegetables and fruits, this situation often will appear indigestion. Especially on top of the above, eating too much meat food at once. For this situation, you can promptly apply drugs to eliminate food and stagnation, such as with Wang’s Bao Chi Wan, Bao He Wan, etc.; 2, caused by H. pylori infection, if the stomach has H. pylori infection, there is often abdominal pain, anorexia, the body is relatively thin, etc.. For this situation, you can promptly do carbon 13 breath test, or do fiberoptic gastroscopy under the urease test, can confirm the diagnosis of whether suffering from H. pylori infection. If there is to give timely application of triple therapy, such as amoxicillin, omeprazole, clindamycin, etc.