The products, which work by freezing off warts, contain a mixture of liquid dimethyl ether and propane. Labels warn that they are flammable and should be kept away from fire, cigarettes and other heat sources. Despite the labeling, patients have suffered singed hair, blisters, burns and skin rashes.
The FDA did not name brands involved in the incidents but products containing the ingredients include Dr. Scholl’s Freeze Away Wart Remover, Compound W Freeze Off and Wartner Cryogenic Wart Remover System. Generic and store brands also are sold.
Other home remedies include drugstore products containing salicylic acid and many patients are using duct tape to peel away warts, layer by layer. Since warts will eventually go away on their own, many dermatologists recommend just waiting, especially for children.
For more persistent or bothersome warts, it’s best to see a healthcare provider, who can offer a number of removal techniques.
Source: USA Today