I had surgery 14 days ago and had an IV placed in my left hand between my first & second finger. The veign that was used is now hard, and can be felt under the skin rolling around as I palpate it. It is about an inch long under the skin. The entire top of my hand has begun to itch, and the top of my hand has visible edema. There is soreness upon palpation on the top of my hand all the way to my wrist. I watched the nurse remove my IV & he seemed to remove it completely but I am not positive. There is no redness, no bruising, and the IV insertion site has healed closed. What could be causing this. It itche s terribly.