Please tell me how long it takes for severe swelling in the legs from a dvt to go away?

It may never go away: Swelling in the legs following an acute DVT can take several days to weeks to resolve if properly managed with anticoagulation and use of compression stockings. An often ignored consequence of DVT is post-thrombotic syndrome, which often includes leg swelling, and occurs because of damage to the veins which had a dvt. This is also managed by compression, however, will never go away.

Variable: With prompt elevation it may clear quickly. Depends on area of clot and if complete obstruction. Collaterals can open in a few days even with complete clot. Harder to clear if the clot is higher in the leg or abdomen- fewer collaterals. Elevation, stockings, anticoagulation are part if he therapy. Good to get back to normal size and external support to avoid ater complications.

DVT/leg swelling: Swelling of the leg following DVT is due to the vein in the leg having a clot which is blocking the return of the blood. The amount of time required for the swelling to subside depends on many factors-the extent of the clot and the veins involved. Larger veins involved and more extensive clots will take longer to resolve. Sometimes the swelling could be permanent. See a vein specialist.