Gromlily... I am not trying to endorse or sell any products, however the following link has items which deal with illnesses such as ours ! I have thought of purchasing an item or 2 ! For the most part when I am in a flare, I usually wear a sling on my left side as this is my worst side and behind it I have a small pillow that holds my arm up and could rest my right hand up on the pillow as well!
http://www.cafepress.com/idastuff/1000918 >>> scroll down to dawn's hyper link instead of this one, hers contains this and and a lot more KEWL stuff
Mark N Goober