The baby can not cough up phlegm blocked in the throat snoring, may and upper respiratory tract infection, bronchitis, etc., you can take pat on the back, nebulization, take phlegm medication and other treatments. In addition, there are also find the cause of targeted treatment. 1. Pat on the back: when you hear your baby coughing up phlegm, you can gently pat on the back and let your child cough up phlegm by patting. 2. Nebulization: When the baby has phlegm coughing out can use ultrasonic nebulization, can be diluted phlegm, so that the baby easy to cough out. 3. Taking medicines to dissolve phlegm: when the above measures are not effective, you can take medicines to dissolve phlegm under the guidance of the doctor, such as ambroxol hydrochloride, etc., to dilute phlegm and help phlegm dissipate. 4. Treatment: If viral infection causes the above symptoms, you can take anti-viral oral solution and other treatments, such as bacterial infection, need to follow the doctor’s instructions to take cephalosporin antibiotics and other anti-infective treatment. Babies should not be stuck with phlegm for a long time, and need to be treated in time to avoid causing unobstructed respiratory tract, which may lead to danger. The medication should follow the doctor’s advice.