) I know someone who uses a slant board, and a black
coffee enema, but I am not brave enough to try it. Sometimes, drinking two cups of hot black coffee work for me, but only if it's done within a day or two. Not as long as you've been dealing with it.
And finally, mineral oil. You will still probably need at least a Fleet enema, because the longer you are constipated, the more dehydrated your stool becomes.
I hope this helps.