Corns will not necessarily blister after freezing, but most patients will blister after corns freezing. Freezing generally refers to liquid nitrogen freezing, mainly through the extreme freezing state, the disease area cells are rapidly killed, can make the disease area to get normal recovery, can treat corns, warts, neurodermatitis and other diseases, local blisters are easy to appear after the freezing treatment, the skin will be more pronounced in the place of the skin tender. Most patients will have blisters after freezing more thoroughly, should pay attention to keep the local skin clean and hygienic, if the blister liquid is too much can go to the hospital, under the guidance of the doctor choose a sterile syringe will be pierced through the blister, so that the liquid inside the blisters out, should pay attention to, don’t tear off the blister wall of the blisters. After the corns cryotherapy uncomfortable symptoms should be timely communication with the doctor, and the correct treatment. You should choose loose and comfortable shoes, and do not get wet until the wound has recovered.