I don't know anything about the dye, but the length of time it takes to recover from a lumpectomy depends largely on whether or not you have a drain, which you can if the nodes are removed. I've had 3 lumpectomies altogether, and without the drains I was better and back to work within days. But everybody is different and every surgery is different. With the drains, it took weeks because you can't drive with the drains in. Hope that helps and I'll be praying for you tomorrow. Please let us know how you do.
Hugs & prayers,