Not neglecting this post ... just wanted to say that I am checking with a plastic sugeon that I know to see what you full options are, short of sugery.

From an exercise standpoint, it is know that you can spot BUILD an area and shape the muscles, but to work the muscles of your neck to fil the loose skin will leave you with a larger, more muscular neck which I assume is NOT your goal ...

So, all I can tell you at this point is that the body will SLOWLY "reabsorb" the excess skin. How long that will take really depends on the amount of skin we are talking about ...