Yuping Feng San can be taken for colds caused by qi deficiency, but it has no therapeutic effect for colds caused by other types of colds, such as wind-cold colds, wind-heat colds and colds caused by wind-dryness. Yupingfeng San is a proprietary Chinese medicine preparation, mainly containing Astragalus, Atractylodes Macrocephalae, and Fenghuang, which has the effect of benefiting qi and consolidating the surface and stopping sweating, and can be used for patients who have a deficiency of the surface and are not consolidated, who have spontaneous sweating, have bad winds, and have a pale complexion or who have a weak constitution and are easily susceptible to wind evils. If the patient often suffers from colds and has low resistance, he/she can take Yuping Feng San orally if he/she has a deficiency of qi or the exterior of the body. Even when there is no cold, this medicine can be taken orally, which can improve the body’s resistance and can prevent colds.