There is no optimal time to do nebulization every day. For convenience, nebulization can usually be done around 9 to 10 am and 3 to 5 pm. Nebulization has a quicker effect and is often used in the treatment of respiratory diseases. Each person’s onset time and condition are different, and the time to go to the hospital for nebulization is also different, and there is no clear limit or regulation on the time. From a convenience point of view, around 9 to 10 am, 1 to 3 hours after breakfast, doing nebulization helps to dilute, decompose and expel phlegm, improve symptoms such as coughing and coughing up phlegm, and is not prone to symptoms such as nausea and vomiting. Around 3 to 5 p.m., with the morning nebulization interval of about 6 to 8 hours, the medicine has been absorbed, and again do nebulization, just to play the effect. There is no specific time to do nebulization every day, it is recommended to choose the right time in combination with personal condition, time and professional doctor’s opinion.