Thank you for your quick response.
No the skin is very soft and full of tiny folds. It is very loose/flabby. It seems to be dehydrating, but it becomes a 'healthy pink' when I put a drop of water on it. I am surprised to see the hamster eats well with this thing. There is no blood at all. It actually looks like healthy 'inside pink skin' when I wet it.
There is no swelling, and no dehydrated 'parts'. The loose skin hanging out of his mouth just seem to require an hydrated environment. It really should be INSIDE somewhere!
Thanks a bunch for your assistance.