Nebulization can generally be done for 3-5 days for non-asthmatic attacks, generally 2-3 times a day; when asthma persists, you can nebulize 3 times within 1 hour at an interval of 20 minutes each time, which is all helpful for asthma. When nebulizing, be sure to pay attention to the flow rate, generally nebulize 6-8 liters of gas within 1 minute. At the same time, do not abuse nebulized drugs without doctor’s guidance. Professional medical knowledge and doctor’s guidance are needed for the type of drugs, timing of use and dose adjustment. If the condition is severe, other medications will be added to the nebulized treatment. Nebulized drugs include hormonal ones, such as glucocorticoids, dexamethasone or saline, which can reach the target organs directly and have a better therapeutic effect.