Children’s cough medicine which good can not be generalized, different physical, different causes, different severity of the disease, the use of drugs are not the same. The best medicine is the one that is suitable for the patient and can treat and relieve the condition. Clinically, it is generally used for cough and phlegm relief, such as Ambrotyl oral solution, Ambroxol hydrochloride oral solution, pediatric cough syrup, etc. 1. Ambroxol oral solution: for acute and chronic respiratory diseases caused by cough, wheezing, sputum difficulty, sputum thick, etc., according to the age and weight to adjust the dose of the drug. However, there are certain adverse reactions and contraindications, need to follow medical advice. 2. Ambroxol Hydrochloride Oral Liquid: It is suitable for people with acute and chronic bronchial or pulmonary diseases with thick and sticky sputum that is not easy to cough out. Different age usage is not the same, some people have adverse reactions, there are contraindications to the use of medication, need to comply with medical advice. 3. Pediatric cough syrup: expectorant, cough suppressant effect, suitable for pediatric colds caused by cough. Adverse reactions, drug contraindications are not clear, there are certain precautions. Need to follow the doctor’s instructions for medication. If the child has a cough, sputum symptoms, we must consult a doctor in a timely manner, under the guidance of the doctor’s diagnosis to take the appropriate medication, do not take medication privately. All of the above drugs should be taken under the guidance of a professional doctor, and should not be taken privately to avoid adverse consequences.