Originally Posted by mrsD

I hope your magnesium is not oxide form. That won't work, as
it is not absorbed.

Sometimes areas of the body have constricted blood vessels,
from inflammation and the oral mag in the blood can't get thru.
Soaking in epsom salts will locally open up those areas, so
blood flow improves. Eventually the soaks can be dropped if you
then see more improvement with the oral.