I've had a plantar wart on my right heel for over 4 years now. It stayed relatively small for about 2 years until it started irritating me, growing larger, and making it uncomfortable to run far distances (I'm a runner). I went to the doctor to have it, and several other smaller plantar's warts he noticed removed off the heels of both of my feet, but within weeks they returned back to how they were before. I bought at-home wart removal kits, which also resulted in a slight decrease in size, only to come back bigger and worse than before the treatment. I found this website and thought "what the heck" and within a single week all of my plantar's warts have vanished aside from the initial one that showed up years ago, which is dead and I predict will fall off within the next week.
Here is what I did:
I read a lot of reviews about applying only scrapes of banana peel to the warts, but because within the last few months the amount of plantar's warts increased dramatically (anywhere from 30-50, gross I know, small ones on both feet), as well as migrating to the sides of my feet, I decided to duct tape the peel itself to my feet.
I would shower, use a pumice stone to scrape away at my feet until they were nearly raw (because of how many plantar's warts there were and the callouses were getting worse), and then apply the banana peel. I ended up duct-taping almost the entirety of both of my feet. I would put socks on to keep the tape from falling off. I'm a waitress and a runner so I'm on my feet almost all day every day, and I would wear the banana peel and duct tape on my feet until the next time I showered, usually the next night. I would repeat this process, not letting my feet "breathe" aside from when I was showering. I've let my feet breathe for the last few days just to let the dead plantar's warts fall out and such, but I plan to repeat this process again starting today until this last plantar's wart has also disappeared. I will swear by the banana peel method to my grave, I never thought I would be plantar wart free without surgery.