Drooling at different stages of age will have different reasons, and different methods of improvement, commonly in the following cases: a. If the child is four months to three years of age drooling, is a normal physiological phenomenon, because at this time the child’s salivary glands gradually mature, the bottom of the mouth shallow saliva can not swallow in time will flow, but there are also abnormalities mainly stomatitis, such as gingivitis, mouth ulcers, etc., will produce pain affecting the child to swallow; hand, foot and mouth disease can lead to herpes in the mouth, will also lead to drooling; more serious cases are encephalitis, cerebral palsy intelligence, etc. The pain will affect the child’s swallowing; hand, foot and mouth disease will lead to herpes in the mouth, will also lead to drooling; more serious cases are encephalitis, cerebral palsy mental retardation and other causes, need to pay attention to. Second, if it is a child or adult night drooling, it may be caused by the weakness of the spleen and stomach, you can take Ginseng and Atractylodes granules orally to strengthen the spleen and stomach to regulate, generally two courses of treatment can improve. If you are a middle-aged or elderly person with hypertension or diabetes, and you have symptoms such as involuntary drooling, slurred speech and crooked corners of the mouth, it is highly suspected that cerebrovascular disease may occur.