Hello Carole, The Donjoy Dura Soft Shoulder Wrap/Back Wrap can be used for both the shoulder and back. It is a 12x13 square ice pack that can be wrapped around and secured with 2 velcro straps. This is not to be used as a sling.
Edema is swelling of both legs from a buildup of extra fluid. Prolonged standing or sitting, especially in hot weather, can cause excess fluid to accumulate in the feet, ankles and lower legs. Tiny valves inside the veins of the legs can become weakened, causing a common problem called venous insufficiency.
Some conditions that may cause swelling in just one leg include: 1  Blood clots. Clots can cause pooling of fluid and may be accompanied by discoloration and pain. 2  Weakened veins. Varicose veins, or veins whose walls or valves are weak, can allow blood to pool in the legs. 3  Infection and inflammation.