The SM is back on the ward, she's fine but still out for the count. They've been told everything is ok and went to plan but SIL is exceptionally upset, the incision isn't where or what they expected.
It's always nothing like you expect when they come out of surgery.
When my daughter came out last November, we were told that she would have some 'light bruising' around her eyes. She had two MASSIVE shiners, and blood streaming out from both tear ducts - like something out of a horror film.
I'm sure if the doctors are happy, all will be well - although I completely understand how upset your SIL must have been!