I have been diagnosed with TOS (vascular), and have had a lot of trouble with just sitting: it causes a lot of wrist pain. I have found that simply wearing a scarf around my neck and hanging it over the thoracic outlet area allows me to sit with less pain! (I also get massage therapy, acupuncture, do some stretches, and restrict what I do with my hands. Posture helps. I use Dragon NaturallySpeaking so that I do not have to type on a computer.) I thought I would share this in case it helps anyone else. (On the natural side, I have found that ginger helps a lot. Finally, I put coldpressed organic sunflower oil on my wrists at night; I don't know why it helps, but it does.)