Cryotherapy

Cryotherapy uses liquid nitrogen to freeze skin lesions.

The liquid nitrogen is often applied with a “cryo gun” which sprays a thin cold mist onto the skin, resulting in a white, frost-like appearance on the surface of the skin. Cryotherapy may also be applied with a cotton-tipped swab or other methods.

The extremely cold temperature of liquid nitrogen kills the skin cells on the topmost layer. Cryotherapy may be mildly painful, particularly when applied to the face, but anesthesia is rarely if ever necessary.

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