Foot swelling isn't a serious problem if it lasts only a short time. But excessive swelling that persists for several hours after you resume activity may be due to a more serious condition, such as a blood clot in the leg (deep vein thrombosis).
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Leg and foot swelling during air travel is common and typically harmless. The most likely culprit is inactivity during a flight. Sitting with your feet on the floor for a long period causes blood to pool in your leg veins. The position of your legs when you are seated also increases pressure in your leg veins.
Yes, really. Your grandmother and marathon runners are on to something. These stockings help increase circulation and reduce the risk of swelling or worse deep vein thrombosis (DVT) and clotting on a long flight.
There are three main types of portable airplane footrests available: inflatable, hammock, and pillow. Inflatable footrests can be placed in front of a seat to create a balloon of support, much like a blow-up pillow or mattress. Hammocks usually hang down from the tray table and cradle your feet.