Hi, I ama 25 year old African American, I am anemic, and I have been getting these very painful knots on my leg that grows on my chin bone, when these konts occur, They are painful and they make it very diffcult to walk, and they get red, hard, and more painful. When I try to rub the swellen down, It seems as if it spreads. Please help me if any of you can!!!!!!! Thanks