Speech and swallow therapist, also called speech language pathologist, usually works with the ENT, and are often in the same department, mine are. You need to do exercises, there are about 15 of them. There is also devises therabyte, and dynasplint (sp) that helps improve mouth opening or just using the old wooden tongue depressors. It's very important to do these mouth opening exercises the first 3 months, otherwise there is little that may be helpful after that when fibrosis sets in.

iPad, and maybe other devises, have an apps called iswallow. It's geared to be used in conjunction with a therapist, but you can access the videos to see them. If you look at iswallow here, a member made a link to rehabilitative exercises, on 1/13/13 on a post.