You absolutely do absorb magnesium from Epsom Salts. This is why Crohn's patients are told not to do this. Magnesium will cause all manner of problems with Crohn's.
It is also true that it draws out toxins. It also helps to heal sprains, strains, bruises, etc. Here where I live there is only one brands, and it is Epsom Salts.
150mg Azathioprine, Lomotil, Iron, Nexium 2/day, Fentanyl patch, Oxycodone, Baclofin
Crohn's, Fibromyalgia, Several bulging discs, Bone spurs, Osteoarthritis, Osteopenia, Reflux, Stenosis, Strictures, Dengenerating facet joints
When I am weak, then am I strong