The following measures can be adopted to deal with the phlegm sound in children’s respiration: firstly, you can apply phlegm-reducing medication to children, such as Ambroxol Oral Liquid or Jinzhen Oral Liquid, which can play a good role in removing phlegm, and after the phlegm is eliminated, the phlegm sound in the respiration of the children will disappear naturally. Secondly, children can be improved by nebulizing, and the nebulizing drug can be Fulvoxil. Fluoxetine is an important medication to reduce phlegm, which can slowly reduce the phlegm in children. Finally, antimicrobials can be given to the child. In some children, the phlegm sounds are caused by bacterial infections that result in the continuous production of phlegm. When the inflammation is controlled by cephalosporins, the production of phlegm decreases and the phlegm sounds are slowly reduced.