I am in no ways a medical professional, but has Liver/Kidney Issues been ruled out? Both I (and my mother) have/are suffer(ed|ing) from leg edema in the past, and in both our cases it's due to malfunctioning liver and fluid retention. A short term palliative is to seriously cut down on sodium content, and take diuretics to get more fluid out fast (this is doable if you DON'T have kidney problems on top of the liver ones). My edema was manageable, and went away entirely once my liver was replaced.

Admittedly, if Liver issues haven't been caught in the ten years you've had this, I don't know what else could be the cause - but sodium reduction/fluid removal is a treatment (though really if the legs were being problematic you should have abdominal fluid to worry about as well).
--- Philip

	Philip J. Moyer Contributing Writer, Editor and Artist (and Moderator) -- Eyrie Productions, Unlimited CEO of MTS, High Poobah Of Artwork, and High Priest Of the Church Of Aerianne -- Magnetic Terrapin Studios "Insert Pithy Comment Here" Fandoms -- Fanart -- Fan Meta Discussions