The common physiological cause of drooling and bad breath is not paying attention to oral hygiene, and the pathological cause is having oral diseases, gastrointestinal diseases and so on. According to different causes, different treatments should be taken, and timely medical treatment should be sought. Common treatment methods include maintaining oral hygiene, treating oral diseases, and treating gastrointestinal diseases. 1. Maintain oral hygiene: Due to the lack of attention to oral hygiene, the teeth are not cleaned properly, which leads to the production of plaque and dental calculus, and then there will be drooling and bad breath. It is recommended that patients should pay attention to oral hygiene, maintain the habit of brushing in the morning and evening, rinse after meals. 2. Treatment of oral diseases: If there are oral diseases such as periodontitis and bleeding gums, the symptoms of halitosis will appear. You can treat the cause of bad breath by treating oral diseases. 3. Treatment of gastrointestinal diseases: If you have gastrointestinal diseases such as Helicobacter pylori infection, you may have symptoms of halitosis. You can improve the symptoms of halitosis by treating gastrointestinal diseases. If it is physiological causes of drooling bad breath, only need to change lifestyle habits can be treated, if it can not be relieved, should consult the doctor in time to clarify the cause of the disease, in the doctor’s guidance treatment and medication.