Drooling is a normal physiological phenomenon, caused by the secretion of more water in the mouth, but if patients appear drooling and accompanied by bad breath may be caused by poor oral hygiene, oral diseases, gastrointestinal diseases, respiratory diseases and other reasons, it is recommended that patients choose different treatment methods to improve the symptoms according to different causes. 1, maintain oral hygiene: If patients do not clean enough teeth for a long time If the patient’s teeth are not clean enough for a long time, plaque and calculus attached to the teeth may cause patients to have bad breath and drooling. It is recommended that patients pay attention to oral hygiene, maintain the good habit of brushing or rinsing early in the morning and after meals, can be regularly scaled and other dental cleaning, for the relief of bad breath and drooling has a more important role; 2, treatment of oral diseases: such as gingivitis, periodontitis, gum bleeding and other oral diseases, may also cause patients with bad breath and drooling symptoms. In general, after treatment of oral diseases, bad breath and drooling will be relieved, such as the use of chlorhexidine and other antibacterial effect of mouthwash under the guidance of a doctor to relieve oral infection, a large number of gum bleeding parts of the pressure to stop bleeding, etc.; 3, improve gastrointestinal function: If the patient has indigestion, H. pylori infection and other gastrointestinal diseases, there may be bad breath and drooling symptoms. Patients can improve the gastrointestinal tract function to relieve symptoms, such as indigestion patients can follow medical advice to choose Domperidone tablets and other gastric power drugs to improve the lack of gastric power, the use of antibiotics to improve the gastrointestinal tract infection, or take bifidobacteria and other probiotics to regulate the gastrointestinal flora; 4, maintain respiratory health: some respiratory diseases, such as pharyngitis, tonsillitis, bronchitis Pneumonia, pneumonia, etc. may cause patients with bad breath and drooling symptoms, and generally the patient’s symptoms are relieved after treatment of respiratory diseases, such as cephalosporins, penicillin drugs for respiratory tract inflammation. In addition, if the patient has excessive drooling, it is recommended to consider whether there is cardiovascular disease, neurological disease, endocrine system diseases, as soon as possible to identify the cause, the symptomatic treatment.