Oxygen nebulized inhalation refers to the use of high-speed oxygen airflow to turn the drug into a mist, along with the respiratory tract to achieve the role of treatment of disease, oxygen nebulized inhalation has many roles: 1, the treatment of respiratory tract infections, patients with cough, cough and other symptoms can choose to add antibiotics in the nebulized medicine, such as penicillin, gentamicin for treatment; 2, cough and phlegm, nebulized inhalation can be wet, dissolved phlegm, effective to help 3, treatment of asthma, antispasmodic and asthma; 4, inhalation of pre-surgical anesthetics, because nebulized inhalation is directly to the patient’s respiratory tract and lungs, the effect is faster than oral medication, can be used as the inhalation of pre-surgical anesthetics.