I woke up a few weeks ago with rash, looked like hives. Blotches under the skin. Went to Internist, he sent me to Dermatologist, then saw the rheumatologist. Finally, I saw my Hematologist. Thinking I had a reaction to my IVIG med. I was on Gamunex for years. Due to the backorder for the med, they changed me to Gammaguard. I receive infusions every 3 weeks. Since starting Gammaguard I had to add a steroid along with other pre-meds. Still have itching. The last infusion was Dec 26.