Cryotherapy involves killing infected cells by "freezing" them with a pressurized liquid spray, usually liquid nitrogen. It must be performed by a health professional such as a medical doctor, nurse practitioner or physician assistant. Application of liquid nitrogen may cause burning or stinging at the treated site, which may persist for a few minutes after the treatment. The procedure is relatively painless to an adult but can be very painful to children. With liquid nitrogen, a blister may form at the treatment site, but it will slough off in two to four weeks. Scarring or loss of color can occur. The scars may fade but the time will vary, it may take a few weeks, months, even years or never.
Kills treated Molluscum Contagiosum Lesions.
Does not allow for treating skin surrounding lesions so virus can survive and spread. May be difficult to treat all lesions due to pain
Scars and/or depigmented skin can occur.