In the last month my cousin has had gall bladder pancreatitis, their gall bladder removed and for about the last 10 days they have been getting very little sleep due to a burning/tingling sensation in the top of their legs. The legs are numb/dull sensation when touched. They can live with the numbness/dull sensation but not the pain/burning. They are on pain killers but that is not treating the source of the problem. We have noticed in the last couple of days that their thighs are very swollen. They have had a MRI and dopplar ultrasound and these have been clear. Any suggestions on cause/treatment options.