Hello, I knocked my elbow into the corner of a wall 3 weeks ago -- very painful.  A huge bruise resulted -- and then faded normally.  However, I am left with a hard knot under the skin by my elbow.  It is freaking me out a bit. Can you please help me?
Hello! Your story let me think about bursitis and its cured now. The hard knot is residues of liquid collection. Physical procedures like magnetic wave therapy can help. You can massage the knot till get to physical therapy