There is no mention of improving immunity in Chinese medicine, which can correspond to improving the body’s positive qi in Chinese medicine. The correct use of Yupingfeng San under the guidance of a doctor has the effect of benefiting qi and stopping sweating by consolidating the surface of the muscle, which can assist in improving the body’s positive qi. However, long-term use of Yupingfeng San is not recommended to avoid aggravating the burden on liver and kidney functions or causing other discomforts. Yupingfeng San is used for treating the symptoms of spontaneous sweating (frequent and natural sweating due to the weakness of the muscle surface). Symptoms such as sweating and wind, pale face (white color with no luster), and pale tongue with thin white moss. It also treats the weakness of the couper (often refers to the skin can not consolidate the sweat, the body surface sweating abnormally), susceptible to wind. Yupingfeng San should not be used in cases of external spontaneous sweating (involuntary sweating during the day, aggravated by sweating with slight movement) or night sweating (abnormal sweating after going to sleep and stopping sweating after waking up). If you need to improve your immunity, it is recommended that you use the medicine under the guidance of a doctor.