possibly that's what he meant, B2y, but you're right, for *some* people too much heat is a bad idea...

I think that blanket statements of that sort sometimes do more to upset the applecart than carefully phrased caveats. LOL !!

from Mult-Sclerosis dot Org:

Uhthoff's symptom is a condition most commonly observed multiple sclerosis and particularly in Optic Neuritis where small increases in body temperature (hyperthermia) caused by exercise, hot baths or showers or otherwise, cause a worsening of symptoms.

The Uhthoff induced symptoms tend to go away as the body returns to its correct temperature after anything from several minutes to a few hours has passed. A very few cases have been reported where new symptoms have been induced by hyperthermia that have not eased away as the hyperthermia passes.

(snipped)

One explanation of Uhthoff's symptom is that hyperthermia induces a heat-linked neuro-blockade of partially demyelinated axons..

http://www.mult-sclerosis.org/Uhthoffssymptom.html

B2Y, "warm" water may be okay (for him, and many others), just not as hot as it is in a hot tub, for example, like Janie, that'd totally wipe ME out, transient or not.

some people can handle 110 degree-days in the desert, and some can't handle 90...

my doc said to try and keep cool, use gel-headbands and neckerkechiefs that get soaked, frozen, and placed around the neck to lower core body temp. and never exercise during the heat of day, or in the sun.

he was clear to state that for *some people with MS* the effects of heat may NOT be transient, so, better safe than sorry... and that's the advice I've kept to for a decade.

I'd also appreciate hearing about it if anyone else has heard differently.