I think the machine is great. I was put into one approx. 2 years ago when I had first gotten my leg braces and could not feel it was not on my foot correctly. A bad bruise had formed on the bottom/side and my doctor sent me to the wound care center where that doctor cut it open to see if any infection was forming underneath. NO but then I had a hole so to clear it up before infection did set up, I used the machine for a month (once a week) and it healed like nothing was ever there. Basically all you do is go sit in there like at the movies for 45 minutes and the one I was in could hold 10 people at a time. Ella
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