Cough is one of the most common respiratory symptoms in babies; many respiratory diseases can cause cough in babies; such as: common cold, influenza, pharyngitis, tonsillitis, bronchitis, bronchopneumonia, allergic cough, bronchial asthma, etc. The method of nebulization inhalation is currently a very good treatment for coughs caused by respiratory diseases. Through the nebulization machine to make the drug output in the form of aerosol, the drug particles can reach 1-5 microns in diameter, with the respiratory airflow into the body, direct contact with the airway surface mucous membrane epithelium and play the drug effect, the local effect is strong, the local drug concentration is also high, the efficacy is relatively good. Over the years with the progress of medicine, and through the treatment experience of many children, nebulization is now considered to be the most effective, most direct, the best effect, the least side effects of treatment. The reasoning is different from that of taking medicine, the medicine eaten into the stomach needs to go through the blood circulation of the whole body, part of it reaches the lungs to play a role, the time to play a role will inevitably be slower than the nebulized inhalation into the lungs, in addition, the drugs that reach the liver and kidneys at the same time will have side effects for the baby, so the nebulized inhalation will also avoid damage to the baby’s delicate liver and kidneys. Of course, nebulization can also have some adverse effects, so be sure to use reasonable drugs and medication cycles under the guidance of a doctor.