Linked from
The 9 pages that link to Cryotherapy, each with the reason it gives.
Liquid nitrogenRelated: Clinicians use liquid nitrogen to freeze selected skin lesions.
KeloidRelated: Freezing small keloids can reduce their size, sometimes alongside steroid injections.
WartRelated: Freezing is a standard clinic treatment for persistent cutaneous warts.
BromoethaneRelated: Bromoethane's rapid evaporation enabled its former use as a skin-cooling spray.