I don't know about a liver flush, however, I am on my 15th day of The Master Cleanse and yesterday i had a sonogram which showed that my fatty liver is almost normal size with a few (normal) fatty deposits. Last year that i was close to forming cirrhosis. I did have a few days where my skintone was orange or yellow and even the whites of my eyes turned yellow at the beginning but my doctor is encouraging me to continue after seeing the results.