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Yes, it works but not always on the first or second time. As soon as you know its not killed, try it again. Its best to file, scrape or cut away extra dead skin covering the wart so that it's a better contact. You can get this almost anywhere. Walgreens, Target, Walmart even grocery stores often have it. This is the best way I have found to get rid of hand or foot plantar warts. It says 7 treatments but you can get a lot more out of it.