Cryotherapy involves freezing a wart using a very cold substance (usually liquid nitrogen). Cryotherapy is a standard treatment for warts and can be done in our facility. The liquid nitrogen application usually takes less than a minute.
– Our specialist may trim the wart with a small knife before applying liquid nitrogen.
– Cryotherapy is painful. A numbing local anesthetic is usually not needed but may be used in some cases.
– Our specialist applies the liquid nitrogen to the wart using a probe or a cotton swab. Liquid nitrogen can also be sprayed directly on the wart.
Most warts require 1 to 4 treatments, with 1 to 3 weeks between each treatment.
Cryotherapy can also be done at home using an over-the-counter product such as Compound W Freeze Off. These home cryotherapy kits use a mixture of dimethyl ether and propane rather than liquid nitrogen. This mixture is used to soak a foam applicator that is then applied to the wart. This product may be safe for warts on the hands or feet but not for genital warts. Follow all instructions carefully to avoid serious burns and permanent scarring.