Histamine can produce symptoms of sneezing, itching, watery eyes, and runny nose. Levocetirizine is used to treat symptoms of year-round (perennial) allergies in adults and children who are at least 6 months old. It is also used to treat symptoms of seasonal allergies in adults and children who are at least 2 years old.
Intravenous Immunoglobulin (IVIG) is a plasma product used in the treatment of certain conditions related to the immune system.VIG therapy is done by administering medication directly into the bloodstream to help treat autoimmune diseases, immune deficiencies, and certain kinds of infections.
IVIg is used in immune deficiency where the body does not make enough antibodies, IVIG supplies them. For autoimmune disorders like GBS & CIDP, there is a abnormal antibody (autoantibody) being formed which is inactivated by IVIG. Patients with autoimmune disorders like CIDP also are deficient in antiidotype antibodies.