Nebulization, i.e. fogging treatment, has the effect of relieving bronchial spasm, dilating bronchial tubes, eliminating inflammation and expectorating phlegm. Nebulization therapy refers to the use of certain devices, using heating, jet or ultrasonic oscillation methods such as medicine, powder or saline and other impact dispersed into very small particles and suspended in the gas, through the respiratory into the airways and lungs for treatment. Nebulization therapy is commonly used to treat bronchial asthma, chronic obstructive pulmonary disease, lung infectious diseases and so on. Different drugs selected for nebulization therapy can dilate the bronchial tubes, relieve bronchospasm, dilute sputum, and inhale antibiotics for anti-infection treatment. If you need to use nebulization therapy, it should be applied under the guidance of a physician.