I did the same thing a year or so ago and WOW!!! did it feel good. After a period of time my feet and leg up to the end of the sock line broke out in a rash. I thought it was a fungus and treated it for fungus. Nothing worked. Someone here on CZ mentioned detox and then it made sense. Tell your friend that if it breaks out to not worry. Just the body cleansing without the pads.