Codonopsis and Astragalus work together to tonify Qi and benefit the lungs, strengthen the spleen and consolidate the surface. Astragalus is sweet and warm, and enters the lung and spleen meridians. It has the effects of tonifying qi and consolidating the surface (consolidating the muscle surface by tonifying qi), supporting toxins, draining pus and astringing sores. It is used in cases of qi deficiency, sinking of the middle qi (deficiency of the spleen and stomach qi, which results in the fall of the internal organs), sweating due to deficiency of the surface (due to the weakness of the surface of the muscles and frequent natural sweating), carbuncle and gangrene (a kind of venomous sores, which is an acute suppurative disease that occurs in the surface of the body, the limbs, and the internal organs), etc. It is also used in cases of long-time ulceration and failure to astringent. Codonopsis pilosula is sweet in flavor and flat in nature, and belongs to the spleen and lung meridians. It has the effect of benefiting qi, strengthening the spleen and lungs (strengthening the functions of the spleen and lungs). It is used in cases of weakness of the spleen and lungs, shortness of breath, loose stools and asthma. The combination of the two has the effect of tonifying qi and benefiting the lungs, strengthening the spleen and consolidating the surface. The adverse effects of Astragalus and Angelica sinensis are not yet clear. When used, caution should be exercised in cases where there is a strong evil in the surface, sores are at the beginning of ulcers, or where heat and toxins are still present after ulceration, and care should be taken not to use the same herb with Veratrum. Avoid eating radish and green beans. If you need to use the drug should be used correctly under the guidance of a doctor, can not be blindly used on their own, so as not to cause adverse effects on the body.