After freezing a corns, a scab grows and should be allowed to fall off naturally, rather than being picked off by hand. When the scab grows, the wound has not yet healed, and the wound is growing under the scab. If the scab is picked off too soon, the tissue growing on the wound is fragile and may be susceptible to infection from outside bacteria. It is difficult for this fragile tissue to fully grow to fill the defect, and depressions can lead to limited wound healing. After the scab has grown, erythromycin ointment can be applied locally to promote early removal of the scab, and ointment can also be applied to moisturize the scab to soften it and allow it to fall off early. If itching occurs, you can use a cotton swab to gently stroke the skin around the wound to relieve the itching symptoms. Pay attention to the care of corns after recovery, try to choose loose, soft shoes, less hard-soled shoes, to reduce local pressure and friction. Remember to soak your feet in hot water to promote blood circulation. Eat more fresh fruits and vegetables rich in vitamins during the recovery period.