Drooling is not necessarily a precursor of cerebral infarction. Drooling can be caused by other diseases, such as inflammation in the mouth, or the recent eating of greasy food that leads to phlegm and dampness in the body, and after the poor transport of phlegm and dampness, the patient can appear to have a lot of saliva and drooling. Patients with cerebral infarction can have sequelae such as salivation at the corners of the mouth, mainly due to the weakness of the affected facial muscles and the phenomenon of drooling.1. If the drooling is unilateral, be alert to the facial muscle inactivity caused by cerebral infarction, but drooling is not necessarily a precursor of cerebral infarction, and treatment should be given for the cause of drooling.2. If the patient has inflammation in the mouth, anti-inflammatory treatment should be given symptomatically. If the patient eats too much greasy food, which leads to the poor transportation of phlegm and dampness, you can give the patient oral Chinese medicine soup to strengthen the spleen and promote dampness, and at the same time, you should have a light diet.