Cryotherapy is a type of cold water therapy usually used in therapy (physio) clinics for musculoskeletal injuries and surgeries (knee replacement, ACL repair, rotator cuff tears, etc). It uses cold water and pressure to help reduce inflammation; usually used after physio exercises, depending on the therapist. It was the patient's favorite part (and I can agree when I'm too hot and my legs are numb I use ice).
I believe that if you are having difficulties with heat and need to cool down, it would be very successful in doing just that :) I've not heard of people with MS use it, but I don't see any reason not to if you have a problem with heat. It shouldn't be administered for longer than 20 mins though. When I was a student working at a clinic we usually told the patient to remove it after 10 mins.
hope this helps!

My orthopaedic doctor always told me to use cold not heat whenever my muscles spasmed or I injured a part of myself, which is a regular occurrence, so makes sense that using that type of treatment will help. Be interesting to follow like the chemo route but unlike the chemo it may help all types of MS not just people with RRMS who have a lot of relapses

Don't know much about this really but what I have noticed is if I swim in really cold water, after I get out both my walking and balance improve. So maybe something in it!

I have heard of this. Asked my research Neurologist at Stony Brook and she had said it sometimes works for newly diagnosed or flare ups at the beginning.

I only saw a brief report on the news and the benefit for ms was almost a throw away line at the end!