For children’s halitosis, eat the following drugs have the best effect: First of all, give children to eat to eliminate food accumulation of drugs. Some children’s bad breath is caused by accumulation of food, because children’s spleen and stomach function is relatively weak, will cause indigestion due to excessive diet, causing bad breath, abdominal fullness and thick and greasy tongue and other symptoms, you can give children the application of hawthorn, Shen Qu or Bao He Wan and other drugs to eliminate food and accumulation. Secondly, children need to be given drugs to kill H. pylori, such as omeprazole, amoxicillin, metronidazole and other drugs. Some children have bad breath due to H. pylori infection, and a carbon 13 breath test can be done to confirm the diagnosis.