MY AUNT IS YEARS OLD AND RECIEVED A 2 UNITS

MY AUNT IS YEARS OLD AND RECIEVED A 2 UNITS OF BLOOD ABOUT 2 WEEKS AGO AND HAS BEEN SUFFERING FOR A VERY ITCHY, BURNING UNCOMFORTABLE RASH FOR SEVERAL DAYS; IT COVERS HER WHOLE BODY. SHE WENT THE ER (BUT I AM NOT SURE IF THEY REALIZED SHE HAD BLOOD TRANSFUSION; SHE DOES NOT PRODUCE ENOUGH RBCs AND IS ON PROCRIT INJECTIONS) ANYWAY THEY GAVE HER A STEROID CREAM, WHICH SHE DOES NOT WANT TO USE, BECAUSE YEARS AGO SHE HAD STEROID INDUCED PHYSCOSIS; AND THINK THE CREAM WILL CAUSE IT TO RE-OCCUR SHE IS TAKING OTC BENEDRYL WHICH HELPS VERY LITTLE. CAN THIS RASH BE DUE TO THE TRANSFUSIONS AND IF YES WHAT SHOULD SHE DO.