Thanks to Caryn, author of the "Just a Little Sweat" blog, for sharing her experiences with iontophoresis. Though she had been using her iontophoresis machine regularly, the palmar and plantar sweating returned. She spoke with the head of the company, R.A. Fischer, that makes her hyperhidrosis machine (and mine too.) He offered some suggestions to help her use the device more effectively. For details, read her blog post: "Iontophoresis Trials." Thanks again, Caryn, for sharing such valuable information.