I had all of the above, and a thermoregulatory sweat test....the purple powder test. I stayed orange-all over. I have in recent years, begun to sweat more...more than I care to....but one of my docs says it is compensatory for areas of my body where I don't sweat....funny thing is....I did not turn purple anywhere, so I don't know where this particular doc felt I was compensating for....hmmphf) (I think he is full of baloney, or bolgona, depends where your from.

Could this be the very slooooowww action of IVIG?