There has been some great adice here, but one other thing... when you stand up, pull your stomach muscles in to help you stand straight (don't slouch). You think it'll hurt to pull your stomach in, but for me it actually provided relief rather than hurting.

Oh, and if you have a belly belt or something similar it really helps to stick a pad to it to help support and cushion the wound, and also your skin around the wound will fell a bit tingley and *****ley and might hurt a bit if something is rubbing (like your pants) so the belly belt helps stop that too.