Electrocautery is a safe and effective procedure that is routinely used in surgery to remove unwanted or harmful tissue and skin lesions such as skin tags, etc.
Electrocautery involves passing a direct or alternating current through a metal wire electrode, generating heat at its endpoint. The heated electrode is then applied to the living tissues to achieve tissue destruction. Prior to the procedure a grounding pad is placed on the thigh to protect you from any harmful effects of electricity.
Cryotherapy refers to a treatment in which tissues are superfreezed to destroy them. It is used to remove precancerous skin lesions, warts, etc. Cryotherapy is also used to treat skin cancer that does not affect deep tissue.