This is my blue black marks from the drip while in labour last week. It still hurts - is this Normal? How do I reduce the pain?

I was put on glucose drip for my entire 16 hrs labour but I did not develop any blue black. I don't think it is normal especially if it causes you pain. Is it because the nurses had inserted the tube unsuccessfully for multiple times resulting in blue black? You can try to use a warm cloth to rub against the blue black to improve the blood circulation around the area.