9 months baby cough need to identify the cause, may be upper respiratory tract infection, bronchitis, pneumonia, etc., under the guidance of the doctor for targeted treatment, such as medication. 1. Upper respiratory tract infection: can be accompanied by headache, fatigue, fever and so on. Viral infections can usually be cured by themselves and do not require special medication. Cough is the body’s normal way of expelling germs, it is not recommended to give children cough suppressants, you can take honey or hot pear soup to relieve throat discomfort. If the combination of bacterial infection caused by cough, consider giving antibiotics, such as amoxicillin. 2. Bronchitis: may be accompanied by nasal congestion, runny nose, sore throat, coughing up phlegm. Depending on the type of infection, use drugs such as amoxicillin to treat. 3. Pneumonia: may be accompanied by fever, shortness of breath, dyspnea and fixed wet rales in the lungs. If for mycoplasma and chlamydia infection, can use azithromycin, erythromycin and other drugs; staphylococcus aureus infection consider benzoxacillin sodium, etc.; Streptococcus pneumoniae infection consider penicillin, amoxicillin and so on. The causes of the baby’s cough is more, it is recommended that parents bring their babies to the doctor in time to give targeted treatment by the doctor, the child’s tolerance to drugs is weak, parents do not blindly give the child medication.