Prior to liposuction, I would recommend buying arnica gel. This will help your body break down any post-op bruising that may occur. Just massage it into any area that is bruised. You will need an old blanket or towels the first 24 hours to sit or lay on, since you may have some drainage. Also, have some movies or books ready for the first couple of days as you recover. Best of luck!
JessieOther than the usual instructions for before and after care, you should try to be at an optimal weight to get the best result. Check out the link below to an article I wrote about plastic surgery diet. Good luck