I developed bumpy dry skin mainly on the back of my arms, signifying mostly EFA and oil soluble vits deficiency.
By massaging oil and taking EFAs and vits A,E,D, the bumps completely disappeared and skin in now smooth and no longer dry. However these bumps turned into many dark freckles (I have had only minimal sun exposure).
So perhaps the Liver Flushes have improved EFAs absorption and if you had skin troubles (collagen, EFAs deficiency), you may now be healing those areas.
Or maybe perhaps the reallocating of stones as they move out may "imprint" new liver spots on other areas of the skin.
Just some guesses.