A fish pedicure is being offered by a number of different spas. It uses a small fish to eat the callused and dry skin. There are concerns about the infection risk from the water and some regulatory authorities have banned them.

Resources:

http://www.podiatry-arena.com/podiatry-forum/tags/index.php?tag=/fish-pedicure/

http://www.podiatry-arena.com/podiatry-forum/showthread.php?t=14339

http://www.podiatry-arena.com/podiatry-forum/showthread.php?t=61878