If the heel wound does not heal, you should go to the hospital and have the appropriate tests done. You should have a blood sugar test to see if there is diabetes. If diabetes is present, the blood sugar should be controlled and the wound can grow only after the blood sugar is well controlled. In addition, if the wound itself has some inflammatory reaction, it will also affect the healing of the wound. If the wound does not heal frequently, there is a possibility of malignant change. Therefore, local debridement is needed to remove the wound edge for pathological examination and bacterial culture of the secretion to see whether there is infection and whether there is a possibility of malignant change of the wound edge. If there is no possibility of malignant change, or if there is no infection, change the medication appropriately, and if there is local exudation, microwave physiotherapy can be done to promote the healing of the wound. In addition, if the wound does not heal for a long time, you can also choose to cover it with a skin flap or muscle flap after debridement.