Jow, it doesn't make much sense to me either.
Why they would suggest this? There must be more to it?
An alcoholic is supposed to stick to a drinking schedule? Good luck!
Maybe it work work for a day or two, or even three...
Then, open the hatch, bombs away...there goes the schedule!
Right back to the start and all the misery that goes with it.
If you can just get it out of your system totally, you're cravings will fade with time.
So.....quit.
Totally.