Nebulizer inhalation therapy is a better clinical combination of physical and chemical therapy for expectorant and anti-inflammatory means, powered by air compression pump or oxygen, which is more conducive to the inhalation of drugs into the lungs and does not require technical cooperation during operation, as long as the child maintains a relaxed upright sitting position. Usually children with asthma can choose air compression pump to do nebulization power, should not choose ultrasonic nebulizer. The mouthpiece of the nebulizer canister is divided into two types: mask type and oral type. The mask type nozzle allows the drug to reach all areas of the respiratory system, while the oral type nozzle allows the drug to be deposited more deeply in the respiratory tract. For older children with better cooperation, the oral nozzle can be used, and they are instructed to spit out or swallow the secretions in the mouth to avoid regurgitation into the nebulizer tank and affect the concentration of the drug. Younger children or older children with more serious conditions, you need to choose a mask-type nozzle. Operation method: 1. Add the drug solution (at least 2ml, supplemented with saline to 2ml if insufficient) into the nebulizer tank and turn on the nebulizer pump switch. 2, after turning on the machine, the child to take a relaxed upright sitting position, deep and slow inhalation and natural exhalation or natural breathing through the mouth, and so the nebulizer can be used up (no longer have aerosol output) when the stop. Each time about 7 to 15 minutes. 3, wash your face after treatment, older children rinse the throat with water and then spit out the mouthwash, repeat several times. 4, the nebulizer can be rinsed with water, dry and spare. Caution: 1, when using try to keep the nebulizer tank and the ground vertical, such as tilt will lead to no fog or even drug leakage. 2, nebulization process to avoid breathing through the nasal tract, inhalation through the nose can reduce the drug deposition in the lungs by 50%. 3, a nebulization time should not be too long, more than 15 minutes, the child is easy to fatigue. 4, the nebulizer cup should be cleaned and disinfected regularly after use. 5.If the child is crying and restless during nebulization, choose to operate when he/she is sleeping, the short and shallow breathing during crying will reduce the airway deposition of drugs.