Yes the Oxypowder will sweep you out and it only takes a week or so, I might be off with the time because I used it 4 years ago.
As long as you are not constipated you can do the liverflush. The Epsom Salt will clean you out during the 2 days.
Improved liver function will help with digestion.
Plan on doing several flushes till 3x in row you don't see anymore sludge or stones.