Warts/lesions sometimes go away on their own, but it can take years. If you do not want to wait, you may want to freeze them off. Doctors call this process cryotherapy. It is one of the most common ways to get rid of warts/lesions. It may also lower the chances that the warts will spread to other body parts. Most doctors use liquid nitrogen, which can reach temps as low as -321 to freeze off the warts/lesions. The doctor will use either a cotton swab or a spray “cryogun” to apply liquid nitrogen to the wart/lesion and some of the skin around it. This may feel like an ice cube touching your skin, but it only lasts a few seconds. Your skin may feel numb briefly and may also hurt, turn red, then form a blister. Once you leave the doctors office, you should be able to return to your normal routine, including showering and bathing. The area usually should not get infected but watch for signs of it, like redness or swelling. Eventually, a scab will form where the liquid nitrogen was applied. The scab will fall off about a week later. Try not to pick at it before its ready to fall off.