hi xray showed bone spur. my sister has extreme constant pain in elbow shoulder pain, arm pain,swollen hand and wrist. no injury to elbow. 5 months now...right elbow very swollen, red, no pain, not hot...been on a strong antibiotic for 6 days no sign of swelling going down. dr wont treat painful {left} elbow with a cortisone shot until swelling goes down in right elbow as he says there is a infection in it.I Don t think there is one there. Should I have a blood test to see if I have a infection? Should I have a ultra sound? Iam very worried as my mom had hemangioendothliom cancer in her hand and had to have it amputated. Does this sound like a bone spur?