If you're tired of dealing with an unsightly or uncomfortable wart, you can try to freeze it off. Warts are caused by a virus that causes the cells in your skin to grow abnormally.[2] Freezing a wart effectively kills the virus. If the wart is on the top of your finger or toe, slowly move the finger or toe while you're applying the compound. Freezing with liquid nitrogen is poorly tolerated in young children due to pain and discomfort. Understand that since OTC compounds don't get as cold as the liquid nitrogen used by doctors to freeze warts. Some warts are cancerous or can indicate a serious condition which requires additional, sometimes life-saving, treatment. Warts are fed by blood vessels and if you damage the vessels by freezing, the warts will die and eventually fall off.
Over-the-counter cold kits use dimethyl ether and propane to freeze the wart and the tissue around the wart.
If you can't get rid of a wart by treating it at home, have several warts increasing in size, or have painful warts, see your doctor or dermatologist.


Liquid nitrogen should not be used at home, since it can cause tissue damage if you apply it incorrectly.
You may not want or need to cover the treated wart with a bandage if it's not causing you discomfort. If the wart doesn't look like it's getting smaller, you may need to re-apply the freezing compound. Sometimes the doctor might want to try a couple of methods at one time in for to facilitate removal. In principle, larger warts may be handled by freezing one pea-sized piece at the edge of the wart, then waiting for the skin to heal completely (about two weeks) before attempting a second freezing. If you visit your dermatologist to have a wart frozen, the dermatologist will use liquid nitrogen, an incredibly cold substance.
Note that if you have warts in the genital region, never attempt to freeze them off at home. You should also see your doctor if you think the growth isn't a wart, the wart is on your face or genitals, your immune system is weakened, or you are diabetic and have a wart on your foot. But, if you have a planter wart on your foot, you'll probably need a special cushioned bandage to make walking more comfortable.


These methods include salicylic acid, liquid nitrogen, imiquimod, 5-fluorouracil, as well as bi and tri-chloroacetic acid.
This method is not approved for home use, since liquid nitrogen can be very painful and cause tissue damage when not used correctly.[1] For home treatment, purchase an over-the-counter (OTC) freeze treatment kit and apply it to your wart.
It may take several treatments and up to 3 or 4 weeks before the wart gradually disappears. Dermatologists will probably be able to diagnose your wart just by looking at it, or may need to run tests.
Most kits recommend pressing the applicator against the wart for 20 seconds or less, depending on the size of the wart.
If you received a liquid nitrogen treatment, make an appointment with your dermatologist to reassess and see if another application is necessary.



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