Dark Line Under Buttock Crease After Smart Lipo

I had Smart Lipo nearly 4 weeks ago on the back of my thighs, and I've only just about been able to sit down. It has been extremely uncomfortable, and the local anesthetic didn't work very well for me, so I found it painful during the procedure. I now have a tightening under my bottom, which has made me look like I have two, as it has created a dark thigh line (an inch or so) below my bottom crease. Will this go back to normal?