Compression stockings can help move blood up the legs to improve flow and prevent clotting and swelling. The stockings come in varying pressures—from strong to light—and in varying lengths—from knee-high to hip-high. The strongest stockings must be custom-fit and require a prescription. Lower-strength over-the-counter support and compression hose are available in pharmacies. The stockings may be used to reduce leg swelling if a person’s blood level is low, to reduce swelling from a blood clot deep in the leg veins, to prevent new clots from forming, and to treat chronic venous insufficiency.
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