Babies like to puff spray saliva, mostly considered physiological phenomena, oral diseases, brain diseases and other causes, need to go to the hospital for examination and treatment after clear reasons. Common causes and treatment a. Physiological phenomenon: newborn salivary gland development and function is not perfect, to about 3 months, saliva secretion will continue to increase, but the baby’s swallowing function is not perfect at this time, can not swallow the saliva secreted in time, so there will be puff spray phenomenon. In addition, the baby is in the teething period, can also stimulate saliva secretion, is a normal phenomenon, usually do not need to deal with. Second, the pathological phenomenon: 1, oral diseases: such as thrush, oral ulcers, inflammation and ulcers will stimulate saliva secretion, but the shallow bottom of the baby’s mouth, and swallowing ability is not perfect, easy to cause the baby like to puff spray saliva situation. Need to go to the hospital in a timely manner, thrush with a weak alkaline solution, such as 2%-5% sodium bicarbonate cleaning, rubbing ice borax, pediatric oral ulcers available watermelon cream spray for the surface of the ulcer to apply, usually pay attention to the diet soft, light, easy to digest; 2, brain diseases: such as encephalitis, meningitis sequelae, these diseases have damaged the brain parenchyma, affecting swallowing function, resulting in the inability to regulate saliva. Treatment needs to be actively anti-infection treatment, if it is a viral infection can be used acyclic guanosine and other drugs, there is a high fever can be applied acetaminophen antipyretic, if has left sequelae, need to go to the Department of pediatric rehabilitation for professional comprehensive rehabilitation treatment. Note that babies like to poof spray saliva, parents need to promptly dry with a handkerchief, it is advisable to put a bib on the baby, but pay attention to more changes, pay attention to the baby’s cleanliness, hygiene.