The frequency of nebulization depends on the specific condition, and it is best to do it about three times a day. When the patient’s cough and phlegm symptoms are more serious, with obvious wheezing phenomenon, it is recommended to follow the doctor’s instructions, it is best to do 4 to 6 times a day nebulization. The role is to eliminate bronchial inflammation, edema, antispasmodic, dilute phlegm and help expectoration, can use the nebulization of drugs, including saline, acetylcysteine, ipratropium bromide, etc., according to the instructions of the drugs used reasonably with. It is suitable for nebulization after surgical endotracheal intubation or tracheotomy. It is recommended to use saline nebulized inhalation 1 to 3 times a day, which is beneficial to humidify the airway. Nebulization for the treatment of acute inflammation of the upper respiratory tract is mainly to defuse sputum (e.g., acetylcysteine) and control inflammatory infections in the lungs (e.g., amikacin nebulization). Nebulization inhalation is a relatively high safety factor and good therapeutic effect of the treatment, the drug acts directly on the target organ, and the amount of medication is relatively small, the side effects are small, the serious condition of the person to do more than a few times no problem, but at the same time need to pay attention to different nebulization of the contraindications of the use of medication and the prudent use of the population. Each person’s condition is different, the number of times of nebulization is also different. Nebulization therapy medication needs to be carried out under the guidance of a physician, do not take medication without authorization.