Usually blistering after a burn proves that it is a shallow second-degree burn, and after the blister is absorbed it leaves dead skin, which usually should not be removed if it is in the early stages of the burn. Although the skin is already damaged and necrotic, it still has the function of protecting the wound and can prevent infection. However, in the later stages when the wound has healed, the dead skin can be removed. Usually the wound is healing as the wound is pink, dry, no oozing, this time you can wash off the skin with water, or wait until it falls off naturally can also.