Pain vs Heat

Any of my fellow sufferers know that extreme heat is a sworn enemy. The only thing besides a cool bath or shower (and finding some AC) I can suggest is an ice pack or a cool damp rag across the back of your neck. I am not a doctor but i play one on......lol , no, it has been explained to me by one that it cools the blood flowing to and from your brain thusly keeping the thermostat turned down.