Colonic in conjunction with LF

So I've heard time and time again that it's best to have a colonic before and after a liver flush? And exactly how many days should I wait after my colonic to go ahead with the liver flush? during the same day right after I have my first colonic?
and how long should I wait to get a colonic after my first liver flush, because some of you advise to give the body a rest.

BTW I'm scheduled for a colonics this coming Friday.