You can take Yu Ping Feng San for colds, especially for colds with Qi deficiency. Colds caused by qi deficiency are due to the deficiency of spleen and lung qi, and the weakness of external defense. As the lungs are in charge of the skin and fur, when the lungs are deficient, the skin does not have a good ability to resist external evils, and the evils therefore invade the body, leading to colds. Jade Ping Feng San has the effect of tonifying the spleen and solidifying the guards, supporting the interior and consolidating the exterior. In this formula, Astragalus is sweet and warm, tonifying the qi of the spleen and lungs internally, and consolidating the exterior and stopping sweating externally (stopping sweating by consolidating the surface of the muscle); Atractylodes macrocephala tonifies the spleen and benefits the qi, and prevents wind from dissolving the exterior and dispersing wind evil. It is often used in cases of deficiency of the surface (weakness of the muscle surface leading to abnormal sweating), spontaneous sweating (involuntary sweating during the day, aggravated by sweating with slight movement), bad wind, whiteness of the face (whiteness and lack of luster), or those who are weak and susceptible to wind evils. It should be noted that Yin deficiency and night sweating (abnormal sweating after going to sleep and stop sweating after waking up) should be used with caution, pregnant women should be cautious, and a light diet is recommended during the period of taking the medicine. The medicine should be taken under the guidance of a doctor.