I had cts rels 9 weeks ago, my arm, hand , elbow is swollen , & hurts, i was inj with cortisone today for tennis elbow, & still in pain, what else is wrg?

Tendonitis : If your ctr has improved your night pain, numbness and tingling in your hand, etc.; but not completely, give it more time it usually gets better w/ time.If u have had no improvement this would be unusual and other dx. Should be considered including radicular pain from a pinched nerve in the neck. Tennis elbow can co-exist w/ cts and confuse the picture . See your ors for evaluation.