I had this prior to my surgery but I had an 80% occlusion in my subclavian vein. I was swollen any time I walked or moved around. It was like my arm was not mine.
i rested put it up on pillows so that the congestion could slow down or ease a little.....MASSAGE was a huge help to get rid of the swelling and help to increase lymph drainage.
I hope you find something to help
Take care
love and hugs,
Victoria