I remember the first time I soaked my feet in warm water with Epsom salt, I got severe burning in the area where it had contact with the water. But, I tried and tried again until maybe on my 2nd week, the burning stopped and until now I don't experience any burning anymore.

I also use Epsom lotion in my feet, hands and neck every night after soaking with the Epsom salt and no burning as well. I use generous amount of Epsom lotion but just the same i experience no burning.