Swelling of the feet after scabbing may be a normal manifestation of scalded feet, or it may be caused by infection, rupture of the surrounding capillaries and so on. 1. Normal performance after the burn: If the foot burn area is relatively large, so that the local skin blood and lymph circulation is impeded, can lead to swelling of the foot, may appear after the foot burn scab swelling. This is a normal phenomenon, usually with the healing of the burn swelling will disappear. 2. Infection: foot burns are infected, resulting in inflammation of the foot, causing the surrounding tissue fluid to ooze out, may appear after the foot burn scab swelling. 3. surrounding capillary rupture: foot burns may lead to capillary rupture around the wound, resulting in hematoma, wound scab hematoma did not disappear, may be manifested as symptoms of swelling. After the foot burns scabs appear swollen situation, it is recommended to go to the regular hospital treatment, to avoid making the condition worse.