Immunity is a western medical term, which is equivalent to the positive qi in Chinese medicine, and Yubingfeng Oral Liquid is able to benefit qi, consolidate the epidermis, etc., and has the effect of improving immunity. Yubingfeng Oral Liquid is composed of Astragalus, Fenghuang, Atractylodes Macrocephala, and has the effects of benefiting qi, fixing the surface, and stopping sweating. It is used for those who have deficiency of the surface (weak muscle surface leading to abnormal sweating), spontaneous sweating (involuntary sweating during the daytime, aggravated by sweating with slight movement), malignant wind, with white color, or those who are weak and susceptible to wind evils. The adverse reactions and contraindications of Yupingfeng Oral Liquid are not clear. Avoid indigestible food during the period of taking the medicine; it is not suitable for patients with fever and cold. If the symptoms are not relieved in 4 weeks, the patient should go to the hospital for consultation. Allergic to the product is prohibited, allergic people should be cautious. It is recommended that patients use the drug under the guidance of a doctor, do not take the drug on their own.