I had my OPTIMUM Focus Footbath in the trunk of my car last summer when I visited a friend from college days. She plays tennis nearly every day, and had developed a persistent, annoying pain in her heel. After dinner, I treated her to a footbath as we chatted. She was surprised at the dark red foamy condition of the water at the end of the bath. When we met again the next morning, she was elated to tell me that she could not remember when she had slept better, and the pain in her foot was much less – she could walk easily again. All that with just one footbath!