I've had a big plantar wart going for almost two years. It's been tough to get rid of, but I've made some good progress with the duct tape method, Epsom Salt soaks and various things like ACV, CS and oregano oil.
I'm going to try out the DMSO and CS idea that Willows if my next run of Epsom Salt soaks, duct tape and ACV don't get rid of it completely.
I just created a blog about my experiences with it if anyone is interested in some anecdotal reading http://stubbornwart.blogspot.com/