A wart  mysteriously appeared  on the back of my hand one day and grew rapidly 
to about 1/4 " diameter by 1/4" in height.I used a piece of Banana peel [ 3/4" 
X 3/4" ] taped over it with  inside pulp on rhe wart.I left it for 24 hrs then 
replaced with a fresh piece for another 24 hrs,then once again.It was gone in a 
very short time with absolutely no trace of where it had been.
It had a crumbly greyish top that itched and stung when scratched.
This happened over two years ago and no recurrence so far.

Harold