C-immunoglobulin is a medication that causes immunoglobulin levels in a patient’s blood to rise rapidly. G-Immunoglobulin is generally made from healthy human plasma and can be used to treat primary immunoglobulin deficiency, secondary immunoglobulin deficiency disease, autoimmune disease and other diseases, with the dual role of immunomodulation and immune replacement, through intravenous injection or other ways into the body can make the patient’s blood immunoglobulin levels rise rapidly. Pregnant women should be treated with caution with the use of this drug, patients with allergy to human immunoglobulin or other allergies and patients with selective lgA deficiency who have anti-lgA antibodies are prohibited from using this drug for treatment. There are generally no adverse reactions to the use of this drug, and very rarely, adverse reactions such as headache and nausea may occur. Individual patients may also experience allergic reactions of varying severity, such as flushing, shortness of breath, abdominal pain, vomiting, and in individual patients, asthma may be induced or even shock. Precautions: The protective effect of Propecia is short-lived, up to 3 to 4 weeks, therefore, the duration of the resistance-enhancing effect of Propecia is also short-lived, about 25 days. Within 1 month after the injection of Propecia, the vaccine or bacterial vaccine that can prevent infectious diseases should not be injected, otherwise it will make the vaccine or bacterial vaccine ineffective. C immunoglobulin should be used under the guidance of a physician, it is recommended that patients who need to use the drug treatment to the relevant departments of the regular hospital for consultation.