A friend of mine said that she cured her warts with oregano oil. But she didn't apply it topically, she said she took an oregano oil supplement.
I'm not sure if that's safe, I guess it is safe since the supplement is sold at pharmacies. I'm going to keep this in mind the next time I get a wart. I had one last year and I had it frozen at the doctor's office, but it left a small scar. Oregano oil does have anti-microbial and anti-fungal properties, so it might really be effective for warts, especially when taken internally.
I wouldn't give it to my kids though and I'm sure pregnant women shouldn't use it either.