How many days can the leg swelling go down after a fall depends on the severity of the fall injury, most of them are around 4-6 weeks. If it is a minor trauma, the recovery time is relatively fast, pay attention to braking, within 48 hours you can appropriate cold compresses to reduce the swelling of the leg, after 48 hours you can consider doing hot compresses to promote swelling, probably in about 2 weeks can effectively reduce the swelling. If the fall is more serious and the hematoma of the affected limb is obvious, the swelling will be relatively slow and take a longer time. In addition to braking the affected limb, patients are advised to take oral or sedative blood-activating drugs and dehydrating drugs, which can generally reduce the swelling in about 6 weeks. How long does it take for the swelling to go down with the injury, the treatment method, and the braking time, etc. If you want the swelling to go down quickly, you should consult a doctor in time, choose the right treatment method, and actively cooperate with the treatment.