If there are problems with the respiratory tract, throat discomfort or airway discomfort, patients like to choose the inhalation nebulization fumigation method, can be done at any time when the respiratory tract is uncomfortable, 2-3 times a day, fumigation does not need to be too long, generally more than 10 minutes can be. Fumigation when appropriate in the water with drugs boiled, or steeped in boiling water with its steam fumigation, the effect is better, no need to use ultrasonic fogging. It is recommended to use water vapor nebulization, if coupled with drugs, the pharynx and airway feel more comfortable. Do not fumigate for too long, because too long can lead to increased airway secretions, and the feeling of raw phlegm.