Infants because of the immature development of organ function, phlegm function is poor, due to various causes of phlegm usually take the following treatment measures: First, you can take oral expectorant drugs, such as oral aminoglutethimide oral solution, there is a certain effect of expectorant. Secondly, you can choose Chinese patent medicines to relieve cough and resolve phlegm. Third, you can do nebulization expectoration, such as using Mucosolvan nebulizing solution, expectoration effect is good. Fourth, you can treat the causes of phlegm, bacterial infections may need antibiotics, such as oral cephalosporin antibiotic anti-infection treatment, viral infections, such as upper respiratory tract infections, you can use interferon sprays or ribavirin sprays, topical throat spray antiviral treatment. Usually the effect of such comprehensive treatment is still possible, but also pay attention to good dietary management, phlegmatic infants should pay attention to help digestion, because poor digestion is also prone to phlegm.