Physiological hypersalivation in infants and young children does not require treatment, and attention should be paid to maintaining local cleanliness; while pathologic hypersalivation requires active medical examination to clarify the causes, such as cerebral palsy, facial paralysis, oral inflammation, salivary gland secretion, etc., and according to the specific causes of the general treatment, drug therapy or surgical treatment, etc.. 1. Physiologic hypersalivation: For children under 3 years old who have excessive saliva secretion during growth and development, most of them do not need to be treated, and parents should pay attention to strengthening nursing care to keep the jaw, neck, and perioral area dry and clean. 2. Pathologic hypersalivation: (1) Cerebral palsy, trisomy 21: behavioral intervention can be made and oral-mandibular system training can be carried out. (2) Facial paralysis: you can practice showing teeth, grinning, making faces and other rehabilitation actions in front of the mirror; if traditional methods fail to improve the condition, surgical treatments such as salivary gland resection, salivary gland duct ligation and neurectomy can be considered. (3) Oral inflammation: for example, gingivitis, 1% to 3% hydrogen peroxide rinsing can be given, or chlorhexidine gargling. (4) Excessive secretion of salivary glands: If necessary, anticholinergic drugs such as scopolamine, atropine and phenyltropine can be taken under doctor’s guidance to improve the symptoms of excessive salivation. If there is a lot of saliva, it is recommended to actively seek medical treatment, under the guidance of the doctor to carry out the appropriate treatment, the use of drugs need to follow the doctor’s instructions.