My wife gave birth on a Wednesday, discharged on Friday, following day (Saturday) already start the urut to 'buang angin' and to 'tighten the loose parts' haha.

Very effective from my personal opinion as this Malay urut lady which we employed used a 'tengku'/hot stone to kempis/flatten her stomach and other parts of the body. You can see the effect after the first 3 sessions.