Prescription compression socks or stockings gently squeeze your legs to assist with blood flow and movement of fluids in the lower limb. Compression stockings are commonly used as a treatment for people with acute or chronic venous insufficiency. Venous insufficiency is a condition where the valves in the veins don’t work as good as they should. The veins have trouble pumping blood back to the heart – causing swelling, aching, and heaviness in the lower leg.
By squeezing your calves, compression socks counteract the increased pressure in the veins. That helps blood flow back toward your heart.