Calling for iontophoresis experiences!

I'm thinking about getting set up for iontophoresis, and would love to hear from others who have used that treatment. Does your skin get dry and prickly? Does it work well? I got to try it once at a medical conference and it seems very doable and effective. Please share your experiences so we can learn more about this highly-recommended treatment option. In the long-term, it's much more affordable than Botox.

My goal: Wear sandals comfortably this summer!