Sorry to hear your swelling is "a bit extreme," which if not a medical term is nonetheless alarming. I haven't dealt with that, but the nice lady with flexion issues at my PT has extreme swelling. It looks painful. She hadn't been elevating at all, though. I don't blame you for trying everything possible! Have you tried very gentle leg massage? Mr. Shoes does this for me, using Palmers Cocoa Butter or oil, while my legs are elevated. Mostly its to work the oil into my skin, which, alas, due to swelling, is dry and flaky and just looks awful. Not to mention itchy. I'm not sure if it might help the swelling or not, but it does feel very good and your skin will thank you. Also, some Smarties have touted the benefits of professional gentle massage.