In the case of frozen corns with blisters, the recovery time is usually 1 to 2 weeks, with some individual differences. The blisters caused are normal and do not need to be broken. Corns are a common dermatologic condition, often caused by localized friction and compression of the skin for a long period of time, resulting in a conical shaped corneal plug. Freezing is a common treatment for corns. The physical action of freezing eliminates the localized thickening of the keratin, thus getting rid of the corns. Recovery time after treatment tends to take 1 to 2 weeks, which varies from person to person and is mainly related to the depth, size and location of the corns. After cryotherapy, blisters often appear on the lesions, which usually do not need to be broken, and breaking the blisters by oneself will easily cause local skin infections, which will not only lead to prolonged recovery time, but also may lead to systemic infections and other undesirable consequences. After cryotherapy, patients need to pay attention to the local skin clean and dry, avoiding water. Pay attention to daily rest, reduce the pressure and friction on the foot, to promote recovery.