Vocal fold polyps are divided into edematous and hemorrhagic vocal fold polyps. The edema type is mainly based on the edema of the mucous membrane layer on the surface of the vocal cords, this edema type of vocal cord polyps are also divided into size, for the relatively small edema type of vocal cord polyps, you can do short-term nebulization, can relieve to edema, thus to a certain extent can relieve hoarseness. However, the purpose of healing is not achieved. For larger edematous vocal fold polyps and hemorrhagic vocal fold polyps, which have caused the destruction of the second layer of the vocal folds, nebulization to reduce the edema of the vocal folds or to reduce the size of the vocal fold polyps is basically not very useful. Therefore, according to the different degrees, sizes and types of vocal cord polyps, it is necessary to choose whether to do nebulization, for the latter two possibilities, are relatively small.