I think I can remember back in the late 50's or early 60's that in
doctor's offices they used to have a little machine that people sat
in, or put their bodies in, that made them sweat?  I vaguely remember
seeing one at a doctor's office when I was kid, but I was reading this
book and it talks about this girls grandma having to do to the doctor
to get some "steam," to clean out her system, and to "dry her out."
  Does anyone recall anything like this?  And if so, what was it
called and what was the purpose?

  Thank you.