I know somewhat about this work but never did it. Just recently my grandgirl landed a FT job at an upcoming Alternative Health/Healing business, Next Health, in Century City, CA. So I'm more interested now. The business also does IV's, laser work, red light work and some others and this Cryotherapy chambers. They are around the US and parts of the world and first started in Japan in late 70's.
Cryotherapy may be unusual but it's looking like an excellent way to deal with symptoms that aren't treatable conventionally. Could it benefit you?