Some good suggestions on this thread, especially the medical taping, which I'm also just getting into (thanks to Laura).
What I wanted to add is how massage, especially deep bodywork can help relief and heal a frozen shoulder. As a massage therapist I know some great techniques that I have used on some clients who suffered from frozen shoulder.
Just a couple of weeks ago I worked on a women who hardly could move her arm and was in much pain. The whole session I worked on her upper body with focus on the rotator cuff of the frozen shoulder. After the session she was able to move the arm full range without pain and the frozen shoulder hasn't come back since. Not all cases can be healed in one session. Sometimes it takes 2 or more sessions and sometimes it doesn't go back to full function but there as has been definitely improvement in range of motions and less pain. However, most people I worked on who suffered from frozen shoulder were healed completely over a range of sessions.
The rotator cuff consists of the Supraspinatus muscle, Infraspinatus muscle, Teres minor muscle and Subscapularis muscle.
These are the muscles I focus on if someone is suffering from frozen shoulder. I especially found that working on the Infraspinatus and Subscapularis helps to get the arm/shoulder moving again. However, all muscles of the rotator cuff should be worked on, going cross-fiber and along the fiber of each muscle.
http://en.wikipedia.org/wiki/Rotator_cuff
This is deep work and can be "painful" at first, resulting in "tingling" down the arm because of the nerves being pinched and it can shoot up to the spine/head. This is normal and if done correctly doesn't injure the tissue/muscle.
Here's a video of my teacher I studied with where he demonstrates two strokes addressing the Infraspinatus:
http://www.youtube.com/watch?v=11hNtXl5kdc&feature=relmfu
Doing this work should only be done by a professional bodyworker and I don't recommend someone to do it who is not trained in deep bodywork. Meaning, don't show this video to a friend and then let him/her work on you. Anatomical knowledge and bodywork experience is a must, for it requires much sensitivity to work on this area with all the little muscles and tendons.
Maybe anyone who is suffering from frozen shoulder can look for a massage therapist in their area who can do this work. It's VERY beneficial and should be sought out before considering doing surgery. Some cases are very severe, so surgery is the only way out so to speak, but it should be the last option, for most cases can be treated without cutting the shoulder open.
I think combining deep massage and followed up with medical taping can even increase the healing process. I'm getting into medical taping right now and will also incorporate it into my work and educate my clients about it.
Laura said:
The LAST thing you want to do with "frozen shoulder" is exercise!
I agree and very important! I've noticed that some people and clients I worked on were so eager to heal their frozen shoulder that they think they must "do" something about it like stretching or any other form of physical exercise to "force" the shoulder to move again. That just makes things worse. The body knows how to heal itself if given the right treatment, like massage and taping. Doing less is more applies to the situation, even after a massage session.
Fwiw, I also started a thread about Massage and Bodywork, describing different modalities and so forth: http://cassiopaea.org/forum/index.php/topic,29359.0.html