Immunity is the western medical term for the body’s ability to resist the development of diseases, which is comparable to the positive qi in Chinese medicine. Therefore, proprietary Chinese medicines with the efficacy of supporting positive qi and strengthening the root cause, such as Kang’ai Injection, Shiitake Mushroom Polysaccharide Tablets, and Gold Mushroom Spirit Capsules, etc., can play a certain role in improving immunity. 1. Kang’ai Injection: It contains astragalus, ginseng, ginseng, bitter ginseng, etc. It has the efficacy of benefiting qi and strengthening the body’s immune function, and it is suitable for the adjuvant treatment of lung cancer, primary liver cancer, rectal cancer, gynecological malignant tumors, and low white blood cell and hypoplasia caused by various reasons. Adverse reactions such as fever, nausea, vomiting, chest tightness, palpitation, skin rash, itching, etc. are occasionally seen with the use of this product, while severe allergic reactions, such as anaphylactic shock, etc., are rare, therefore, this product should be used in medical institutions with rescue conditions, and it is forbidden to use it in conjunction with preparations containing quinine, and the old people, children, and allergic individuals and patients who use this product for the first time should be cautious. 2. Shiitake mushroom polysaccharide tablets: composed of shiitake mushroom polysaccharide, has the effect of benefiting qi and strengthening the spleen, replenishing the deficiency and supporting the correctness of the efficacy of the chronic hepatitis B prolonged hepatitis and gastrointestinal tumors of radiotherapy and chemotherapy adjuvant therapy, but there is an antiplatelet coagulation effect, patients with hemorrhagic disorders should be careful to use. 3. Gold Mycorrhizal Capsule: composed of mycelium of enoki mushroom, it has the efficacy of tonifying qi and blood, supporting the positive and consolidating the essence, and can be used for the adjuvant treatment of chronic hepatitis and cancer patients. The above drugs are prescription drugs, their use should also be under the guidance of a physician to strictly comply with medical advice, immunocompromised people should not be used blindly.