Cryotherapy is an effective treatment for warts and has a 50 to 70 percent cure rate after three or four treatments, according to the American Academy of Family Physicians. Most warts require one to four treatments administered at intervals of between one to three weeks, notes WebMD.
Healing after cryotherapy lasts between one to two weeks and leaves little or no scarring, explains WebMD. However, the treatment may result in a white mark that is particularly noticeable on individuals with darker complexions, states DermNetNZ. Cryotherapy treatment, especially for warts on hands and feet, should be discontinued after three months or four treatments since no benefits are documented beyond this point, according to AAFP.