My fiance has been back and forth to the er in the last 4days because of arm pain after a plasma donation. The first doctor said it was cellulitis and to come back the next day to check to make sure infection hadn t spread. When he came back the doctor wanted to admitt him, but he refused bc he cldnt get ahold of me. When he came home I told him we must go back. When we returned, they said there was no need and said he had thrombophlebitis. The first doctor said the infection was moving to his chest, the other doctor said there was no infectionand sent him home. His symptoms are swelling, very painful, can t move it, and there is red dots that look like its been pinched or blood vessels have burst and his arm is hard in the area. It has moved farther up his arm and he is now having chest pain and shortness of breath. He also has pain in his penis, itching and the color has changed..darker. he said its throbbing