I Had Shoulder Replacement Surgery Today, I Told The Hospital

I had shoulder replacement surgery today, I told the hospital I was allergic to it he says but the nurse who put my IVN secured it with tape but have it he sits on it. So the doctor put in a injectable potential into my IV, and I have taking it Orally all day since I got home from surgery. I think I might be allergic to the anesthesia, the pain meds, or the antibiotics used in the IV. I am itchy from my. Scalp to the bottom of my feet! Help !!!