If halitosis occurs for a long time, it is recommended to go to the Department of Gastroenterology or the Department of Spleen and Stomach of Traditional Chinese Medicine. At present, halitosis is related to poor gastrointestinal function, dyspepsia or Helicobacter pylori infection. In addition, traditional Chinese medicine believes that disharmony between the spleen and stomach may also be the cause of their own bad breath. Therefore, they should go to the Western Medicine Department of Gastroenterology to check for Helicobacter pylori, etc., to determine whether there is any infection. In addition, recuperate your gastrointestinal function to further help digestion, avoid excessive generation of odor gas, and thus treat halitosis. Traditional Chinese medicine mainly treats halitosis by regulating the spleen and stomach to improve gastrointestinal function, and treats halitosis according to individual conditions.