Falling asleep during nebulization in children usually does not affect the effectiveness of the treatment, and there are no mandatory requirements for posture or wakefulness. Nebulization of children is not mandatory for children’s posture and personal wakefulness. Children fall asleep during nebulization, when the respiratory state is very stable, in a quiet state to do nebulization can reduce airway resistance, so that the nebulized medicine can reach the lungs smoothly, usually will not affect the therapeutic effect. However, it should be noted that a part of the children to do nebulization have a sense of rejection or fear, often crying when doing nebulization, crying will cause an increase in airway resistance, which is not conducive to the nebulized liquid into the airways, lungs, to achieve the role of relief of airway spasm, but may affect the therapeutic effect. Children need to follow the doctor’s instructions to do nebulization, if in doubt, it is recommended to consult a professional doctor.