Cryotherapy is the most common clinic treatment.
Methods available through The Wart Clinic also include Medical-Grade topical treatment, Electrocautery, and Surgery.
Freezing warts at home may be attempted at home using over the counter products but they are nowhere near as effective as Freezing using liquid nitrogen in a GP clinic¹. Freezing using over the counter products will freeze at temperatures of up to -70°C whereas liquid nitrogen freezes at -176°C.
Cryotherapy involves freezing the wart with a 2mm margin of normal skin included in the treated area so as to kill the virus in and around the wart. A thick wart may be pared down before freezing. Cryotherapy is reasonably effective. However, more than one session is usually required to clear the wart. Treatment is performed at 2 to 3 week intervals.
The greater the freeze time, the more effective the treatment but with a greater risk of pain and blistering.
Side effects can include lightening or darkening of the skin in the treated area which may persist.
How about kids? Children will definitely not appreciate a deep freeze and may hate doctors for years to come! A light freeze may be performed but is probably not going to be effective. Whether you want the wart treated or not depends on the age of your child, their tolerance to potential pain and their attitude to the wart.