Patients with low immunity can take immunity-boosting drugs to increase the number of white blood cells in the body. Immunity, so patients can take zinc gluconate or other drugs to improve immunity. Most of the targeted treatments for low immunity in hospitals are injections of protein preparations such as lactoimmune protein and whey protein, which can effectively increase the secretion of immunoglobulins and growth hormones in the body to improve immunity and promote human development and growth.