How painful is the recovery of a sliding genioplasty?

Chin surgery is something we do every week in my practice.  The recovery is not typically painful so it should be in many ways easier than a tummy tuck.  However, there is a fair amount of visible swelling which can persist for two weeks or more.

It would be fair to say that the recovery from a tummy tuck far exceeds that of a sliding genioplasty n many levels. It is not that relevant to compare a body procedure to facial one as there are many aspects of each that are completely different and not comparable.

Genioplasty, most of the times, refers to chin augmentation by using a chin implant. It is a simple procedure, with minimum pain and risk. The recovery period is less than a week. 
Sliding genioplasty is a more demanding procedure. The recovery period is more extended and during that time you may experience swelling, bruising and pain. Pain killers, especially for the first three days, will probably be necessary for your relief.