Patticake, I've come to the conclusion that these rashes and bumps are caused by two things: (1) toxins; and (2) an overstressed liver that can't deal with any more toxins and so sends them on their way down the lymph system for your skin to deal with. (The body is so amazing how it knows to do these things out on its own!) Your experience of getting so much better after using the liver tonic supports this theory.
By the way, I have a friend who has a footbath she swears by. It has a machine tied into the foot bath that gives out a low level electrical impulse that is supposed to draw the toxins out of the feet. She says it really works. The maching costs about $250, or so, and she gave me the website where I could order one. I haven't done so, but I think I can still find the website if you are interested in checking it out.