What is cryosurgery?
In cryosurgery, liquid nitrogen is used to remove skin growths, fade age spots and treat early stage basal and squamous cell carcinomas. The doctor will apply frozen nitrogen using either a cotton swab or a spray device. The goal is to freeze the skin quickly and then allow it to slowly thaw to cause maximum destruction to targeted skin cells. In some cases, additional applications may be needed. When treating skin cancer, the doctor may insert a small needle containing a thermometer into the treatment area to ensure the treated area has been sufficiently cooled.