In defense of at least that wart remedy, a wart will turn green/black pretty much right away and then fall off relatively quickly if you keep it saturated with

In defense of at least that wart remedy, a wart will turn green/black pretty much right away and then fall off relatively quickly if you keep it saturated with vinegar for a few hours here and there. I am willing to believe that some excreted waste materials could have a similar effect.