I administered an injection in both my triceps 50mg prop/50mg nand. phenly and the night of the injection my left tricep hurt extremely bad. The next day there was swelling near my elbow joint and I could barely move my arm. Gradually throughout the day and the following day the swelling and redness gradually started to move down my arm onto the lateral portion of my forearm. It also seems that the lateral head of my triceps has shrunk to almost nothing. I injected friday it is now monday and the swelling is still in my forearm and my arm is still puffy and looks a little abnormal. Just wondering what anybody might think is happening? I made sure to aspirtate, and I have done several injections in my tris but this never happened.