What Can I Do About Lower Back Pain After Vaser High Def Liposuction?

I've had High def vaser on my tummy sides and back and seem to be healing ok now after 4 weeks, but my lower back is very stiff and increadibly painful. My muscles are v inflamed and my natural posture seems to worsen the matter. What exercises should I be doing to help heal it? should I continue with anti-inflamatories? Will my fascia improve quickly?