Permanent swelling of the right ankle - Advise?

Swelling in the legs or lymphedema can be vein problems or venous insufficiency but there are other causes as well. Often treating the vein problems with saphenous vein ablation does not treat or significantly improve the leg swelling. Compression stocking are the cornerstone of treatment of lymphedema / leg swelling, so i would strongly recommend their use.  I hope you were not promised resolution of your swelling with the vein ablation. I would follow up with venous and lymphatic specialist who can offer additional evaluation and treatment. 

First I am sorry for your complicated course. I would recommend rescanning the leg and seeing if you have a clot, deep insufficiency or superficial insufficeincy that are present.  If you do this could be part of the reason that you still have swelling.  However, I would also consider other reasons that the leg is swelling.  You do appear to have venous insufficeincy changes in your ankle.  Other causes of leg swelling exist.  One of these is lymphedema.  Another reason for unilateral swelling is a pelvic mass or blockage of a pelvic vein or compression of a pelvic vein by something.  I would work up other causes of the swelling if this persists.  Continue to wear compression hose and elevate your legs.