For the start I would do some enemas. If that does not help, flush again.
I stopped having diarrhea after Epsoms around my 4-5th flush. I do have more bowel movements afer taking Epsoms, but is far not the same as when I first time used Epsoms. I guess body just gets used to it after a while and does not react so much anymore.
After my flushes, when I feel that I still have some stones in my intestines, I do a couple of enemas.