Baby expectorant cough does not exist the best way, baby cough, cough phlegm is mostly seen in respiratory diseases, more oral medication, nebulizer treatment, daily dietary therapy. 1. Oral medication: Give babies expectorant drugs, western medicine Ambroxol Hydrochloride Oral Liquid, Acetyl Cysteine Granules and so on. Chinese medicine expectorant spirit oral solution, pediatric phlegm and cough granules, etc. These phlegm medicines can dilute phlegm, effectively promote the phlegm discharge. 2. Nebulization therapy: babies can be nebulized, nebulized drugs including budesonide, ipratropium bromide, salbutamol, etc., to relieve bronchial spasm has the effect of phlegm. 3. Daily dietary treatment: to eat a light diet, eat more fruits and vegetables, eat thin porridge and rotten noodles and other well-digested food, do not eat high-protein, high-calorie food, can help relieve the baby phlegm situation. Babies should pay attention to hand hygiene during respiratory infections, wash their hands frequently, and wear a mask if necessary to prevent cross-infection. No matter what kind of disease causes cough and phlegm, it is important to treat the primary disease along with the symptomatic treatment. All of the above medications should be used under a doctor’s supervision, avoid self-medication.