the case of sarcoids or other tumors, cryosurgery might be a good solution.

'Freeze-firing' splints, curbs or sore shins are another application of liquid nitrogen.

 

Cryosurgery is performed using a device containing liquid nitrogen, called a 'cryo-gun', which makes it easy and practical to target the problem area. Some conditions require several treatments to achieve a successful outcome. 

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After treatment, white hair may grow on the affected site.