Will laying on stomach allow seroma to lower back move to front?

I had a tummy tuck & circumferential liposuction July 7th. Minimal swelling, drains removed after 9 days, developed seroma on 11th day. I also had swelling which was fluid like to my lower back which at first the PS said he was normal. I've been drained 3 times from the mons pubis area. First 60cc, 5 days later 55cc, 5 days later 25cc. Fluid still on back, PS indicated a seroma there as well. PS said to try laying on stomach to bring the fluid to the front as he doesn't want to drain from back.