Nebulizer inhalation is currently the safest and most effective method of treating asthma in children, and is listed as the first choice by the WHO (World Health Organization) for global asthma control. Nebulizer inhalation therapy is a nebulizer device that turns liquid into tiny mist particles or droplets suspended in the gas, so that the gas is moistened and the medicine is inhaled into the respiratory tract to achieve the therapeutic effect of moistening the respiratory mucosa, anti-inflammatory, expectorant and asthma calming. Nebulized inhalation does not require deliberate cooperation from the child and is suitable for children of any age. The child can easily and naturally inhale the medication through the mask to avoid aggravation due to the child’s nervousness and distress.