Infant’s mouth old puff spit, may be normal physiological factors, such as drooling swallow less than, or teething gums itch, etc.; if the symptoms are serious, may be caused by pathological factors, such as mouth ulcers, thrush, nasal inflammation, etc., can be targeted medication under the guidance of a doctor. First, physiological factors: 1, drooling: infant salivary glands and swallowing function is not well developed, with the growth of age, saliva secretion increases, infants can not swallow most of the saliva in a timely manner, there will be the mouth of the old fluttering spit phenomenon, such as there is no other abnormality, no need for special treatment; 2, teething: infants, if they are in the teething period, there will be itchy gums or swollen and painful gums, will be through the mouth of the old fluttering spit to Relieve the discomfort, after the teething period, the symptoms will be relieved on their own. Second, pathological factors: 1, oral ulcers: oral ulcers cause is not clear, may be related to decreased immunity, genetic factors. Infants will be manifested in the mouth, gums and other places on the mucosa of the formation of ulcers, accompanied by obvious pain, infants to relieve the pain will appear in the mouth of the old fluttering and spitting symptoms. Can be used under the guidance of the doctor compound chlorhexidine dexamethasone film, Guilin watermelon cream and other treatments; 2, thrush: thrush is mainly caused by Candida infections, may be weaker with the baby’s immunity, or with Candida infections in close contact with the patient. Its manifestation is the surface of the tongue or oropharyngeal surface with white patches, infants will appear irritable, crying, mouth old fluttering spitting symptoms. Can be used under the guidance of the doctor sodium bicarbonate tablets or mycotoxin tablets soaked in water, with a sanitary cotton ball dipped in liquid, coated in the thrush site; 3, nasal inflammation: such as rhinitis, sinusitis, etc., manifested as nasal congestion, runny nose, infants will be through the mouth of the old fluttering spit action to ease the discomfort. Under the guidance of the doctor can give the baby using saline nasal spray, relieve the symptoms of nasal congestion. When your baby has the symptom of mouth fluttering and spitting, you must pay attention to it and actively cooperate with the doctor for treatment.