Okay, I've noticed that Dean doesn't have Castiel's hand print burned into the flesh of his left arm anymore. Does that mean that it was healed when Castiel healed Dean at the end of 'Swan Song'? And does that mean that Dean has been rehyminated again?
See...
and
Aaaand
Oh, wait that's his neck ;P
So, where is it? And no, it's not on his right either.
See...
Smooth as a baby's bottom. So, Castiel rehyminated him again!