I have been receiving IVIG for 12 yrs now. I have had reactions to it, thus, needing pre-IV meds. every time. It takes about 4-6 hrs every 4 wks. I go to a nearby hospital. I have wished I could do it at home. But I'm not sure if this Hizentra is right for me? I've read most of the info & some reviews. I thought this was going to be more like a 'shot in the arm's. Kind of like getting allergy shots. It sounds way too complicated .