When I had my BBL done, I purchased a special BBL pillow to sit on (from Amazon) to distribute the weight off my butt after surgery.
I also remember having to ice frequently, take supplements with bromelain to reduce bruising and apply arnica.
In addition, at the recovery house where I was staying post surgery we were driven to daily hyperbaric chambers for oxygen therapy as well as lymphatic massages. The massages were excruciatingly painful, and it took months for all of the swelling and bruising to go away. I had to wear supportive clothing for several months.
I suggest taking it easy and stocking up on all of your supplies prior to surgery because this recovery is a process and it seems like it takes forever.
Anyone else have other tips I may have missed?