There is generally no time limit on how long to apply the cornside cream externally, and it is usually appropriate for the cornside to fall off completely. After continuous external application of corns, the local corns will soften and become white, and the corns will fall off after continuous external application, so there is no need to continue external application of corns. When applying corns, it is important to regularly observe the changes of the corns on the affected area, and it is not necessary to continue applying the cream after the corns fall off, otherwise ulcers and soft tissue infections will easily occur.