Haha, I thought it was common knowledge that epsom salt reduces swelling. As to where I got the information; I was a ranch hand when I was younger. You see, while it is true that warmer water will cause blood vessels to dilate, this is a good thing. It is needed for the magnesium sulfate in the salts to take effect. The magnesium is absorbed through the skin and is what aids in inflammation relief. of course for immediate swelling it is best to use cold temps to constrict blood vessels, but being cold blooded I am wary of dropping their temps too low. I am unsure of how long the cham has been with a prolapse, but since he or she was worried about it dying and not being able to see a vet because of distance/expense, I offered a page from my experience. If it has been only a day, I would advise applying KY and waiting to see if he retracts it on his own.