I tried foot pads around thirty times. Their color turns into dark brown for the first morning but after a week the color is much lighter and comes down to a smaller area. After two weeks they remain white. A month later however, the whole procedure brings the same result as the first time did.

I often have some tingling sensations in my body at different places, especially along my lymphatic nodes. I had it in the middle of my back close to my backbone on the left. I put a foot pad on that area for the night. My evening symptoms have increased but I felt my head somewhat clearer in the morning. Most of the area of the foot pad remained white except a curved aslope stripe that was brown. A week later I repeated the experiment with the same result. The tingling on that area has eased.