New Crown Immunoglobulin is useful. Immunoglobulin is a blood product obtained by isolation and purification of plasma from healthy donors, containing highly purified immunoglobulin G antibodies, and has been widely used in the treatment of various types of immunodeficiency diseases and serious infections, etc. Results have shown that in patients with severe neocoronaryngitis pneumonia, the administration of a high dose of immunoglobulin intravenously within 14 days of the onset of the disease reduces the mortality rate at the 28th day of the disease. Neocoronavirus can stimulate immune cell over-activation, leading to cytokine storms thus triggering severe illness. Immunoglobulin has a broad anti-inflammatory effect, inhibits immune cell over-activation, and can inhibit the formation of cytokine storms, thus reducing the mortality rate and improving the prognosis of the patients. If you are suffering from new crown pneumonia, you should go to the hospital in time for examination, do not hide it, so as not to cause the spread of the disease and adverse consequences. [Tip] In this article, the terms “new coronary pneumonia and new coronary virus pneumonia” were renamed to “new coronary virus infection” on December 26, 2022, as announced by the National Health Commission.