What Rich says. It is very annoying, and it comes out with good HDRI. I stated a thread on Rendo, and as predicted it got completely derailed, but has some nuggets of info.
What you say about Burley may be the reason...actually. *
thinkyface* It is good to see that simple is almost always the answer, to be honest, now that PBR is in Poser.
Weird Blue Glow on Skin | Renderosity --just ignore the weird derail, it has some good info there about how intersecting meshes are a pain.
Cycles based SSS skin shader | Renderosity ---this has a skin shader I use right now and it's Cycles based, as simple as it gets, but I may go even simpler now that I tested a Physical surface based one with *
good* maps. Good maps are such a key (again, helloooo, vendors).