Hi. I had a wrist operation about three years ago it shave bone half way down my arm to remove fragment that was left fro previous op before that and to remove a bonE to stop the bone growing into my hand they aldo added a metal plate. Three years down the line my scar starts to get lumps , red around my whole wrist and really itchy. What is wrong. Im constently scratching it because the itcyness is annoying.