Hi Mel, I wouldn't think you would need to have that done if you are cancer free? Same as you in 2015, I only had the sentinel node dye so the surgeon could track which nodes my tumour was draining into and remove them for testing. They inject the blue dye into or around the tumour and then wait and watch to see which nodes turn blue. I actually googled images of the procedure which was quite an eye opener!! If you don't have a tumour then there is nothing to track into the nodes. I hope you had a better nights sleep and are feeling more rested and relaxed. Jane xx