Hi! I plan on having a surgery 5h away from home. I would take two flights back home after surgery so I don't sit for 5h straight. Would it be safe to sit on a bbl pillow and not ruin the fat cells for a 2,5 h x 2 plane flight 5 days after surgery? 2. Is sitting on a bbl pillow equal to not sitting at all or does it also make fat cells die but just not as much as sitting right on the butt? How soon after surgery can one be exposed to the sun? And how long is one usually swollen?