As per one of the google adds above..http://naturopathicdoctor.wordpress.com/2007/07/12/natural-nail-fungus-treatment-the-beer-soak/?gclid=CIvU3vmKuY0CFRWOEgod-UHMMA
I'm not sure I could bring myself to put fungified feet in good Guiness. I did wash my hair once with BMC but all it did was attract bees.
Soaking your feet in starsan will do the same thing.
I wonder if a guy could train his feet to drink? Perhaps that's what happened to the wobbly ankled model in another post. Some inject their drugs between their toes, so....