My mom has swelling in her right hand and up to an inch below her elbow. Its hot to touch. She also has a red line from her wrist that extends all the way up the inside of her arm a couple inches past her elbow. This started at 2pm today and symptoms came about pretty quickly. At 630pm she went to a small county ER. they gave her benadryl in the ER and a script for a steroid. Told her not to worry about filling steroid til tomorrow morning. She is very concerned about the red line. I had leukemia as a child and it was initiated by a staff infection with a red line going up my arm. Should she be satisfied with the ER'S answer??