Generally speaking, within one year old baby drooling is a normal physiological phenomenon, of which there are roughly four reasons: 1, eating a starch-containing complementary food faster development of the baby, at 4 months of age can already begin to eat starch-containing complementary food, the starch in the complementary food can stimulate the secretion of amylase in the mouth, thus causing increased salivation. 2, sucking fingers baby sucking fingers, oral stimulation can increase the secretion of saliva. At the same time, the baby’s mouth shallow and small, swallowing function is not yet fully developed, making it difficult for the baby to secrete more saliva to swallow, saliva will be “watery”. 3, teething teething can stimulate the secretion of salivary glands, causing increased saliva. 4, swallowing function is not yet mature baby, swallowing function is not perfect, once the saliva accumulates in the mouth, the baby can not swallow, it may flow out. Due to the reason of teething, the baby in about 7 to 18 months, will present “drooling period”. With the development of swallowing function and teething, drooling usually stops at the age of 2 to 3 years old, but due to differences in development, individual babies may have a slight delay in drooling. Drooling in babies with cerebral palsy or congenital dementia usually stops at the age of two to three. If a baby has delayed language development and inability to walk in addition to drooling after the age of two, beware of problems in intellectual developmental disorders. So once the baby enters the drooling flooding period, as parents and how to care for it? 1, cut short nails itchy skin, the baby inevitably to scratch. The sharp little nails are easy to poke the baby’s delicate skin, and the dirt hidden inside the nails may also bring new infections to the baby’s skin. 2, mouth ulcers if there are mouth ulcers, baby saliva secretion will also be significantly increased, so find the baby crying when eating or repeatedly licking a location in the mouth, to draw attention to. Respiratory infections can also cause drooling when the baby has a respiratory infection. Usually, this cause of drooling may also be accompanied by coughing and fever. 3, pay attention to the way of teasing many adults when teasing the baby, like to pinch the baby’s cheeks. Unbeknownst to them, there are salivary glands in the cheeks, and frequent touching will cause repeated stimulation of the salivary glands, thus causing increased saliva secretion. In addition to good care, you can also enhance your baby’s swallowing and oral coordination through training, for example: let your baby imitate the action of swallowing saliva by mom and dad; feed your baby egg cakes to improve your baby’s chewing ability and eliminate the discomfort caused by teething. Through these training, you can make the small mouth open and close freely, so that the small milk teeth erupt smoothly, those hanging around the baby’s mouth to let people worry. 4, complementary food added too late some parents believe that breast milk or milk than complementary food nutrition, so even when the baby should add complementary food age, but also still breast-feeding, resulting in the baby’s tongue and swallowing function is not properly exercised. If there are any dangers to your baby’s drooling, probably the biggest one is “saliva rash”. This is because saliva contains substances that digest food, which can destroy the skin surface of the stratum corneum, the skin will then become dry and vulnerable to germs, forming a “saliva rash”.