After cryotherapy, there will be tolerable local pain, edema or blisters or even blood blisters, after which the blisters or blood blisters will gradually dry up and crust over, and the scabs will fall off and the patient will be seen again. Note: If the scab remains on the surface of the damage at 2 weeks, remove it by soaking in warm water and follow up promptly. For larger blisters or blood blisters after treatment, you should follow up promptly. Plantar warts (plantar warts) require multiple treatments as they are often deeper due to prolonged stepping on the foot.