Cryosurgery is used frequently by dermatologist to treat many skin problems. Liquid nitrogen is sprayed on to the area of skin freezing it. Light freezing causes a peeling, moderate freezing a blistering and hard freezing a scabbing. The most common uses for cryosurgery is to treat warts, seborrheic keratoses and actinic keratoses. It is also used for acne, scars, small benign growths and some skin cancers.

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