Hi, me again....I am starting them at 1x per week..i asked my naturopath, and she thinks 1 x a week is good...i guess after a foot bath, your body detoxes for 3 days....so you shouldn't have them more than twice a week....the lady who did mine said they are a deep detoxifier...even though you don't feel a thing while having it done.....................Did anyone have a headache afterwards.....or feel tired and ill.................i do feel better today, but felt ill right after the treatment? thanks Sandra...............and thanks for the cancer info.