From the perspective of traditional Chinese medicine, Cang Er Zi is warm in nature, pungent and bitter in taste, and has the functions of dispersing cold, dispelling wind and dampness, clearing nasal passages, detoxifying and killing insects. Firstly, it can be used to treat cold caused by wind-cold on the surface of the muscles, which is characterized by fear of cold, wind, cough, sputum, mainly white sputum, accompanied by headache, and a pale tongue with thin white coating. In addition to treating wind-cold colds, Cang Er Zi can also be used to treat wind-cold damp paralysis, which simply corresponds to rheumatoid arthritis and rheumatoid arthritis in modern medicine, resulting in redness, swelling, pain, or unfavorable flexion and extension of the joints. In addition, Cang Er Zi has a particularly good effect of clearing the nasal passages and can be used to treat acute or chronic rhinitis and sinusitis, which can help patients quickly improve their sense of smell and reduce these symptoms of nasal runny nose. In addition to being taken internally, Caulophyllum can also be used externally, which has good detoxifying and insecticidal effects and can be used for various dermatitis and itchy skin, and external application can improve the symptoms of the patient’s skin.