Wuji San has the efficacy of dispersing cold and removing dampness, resolving phlegm and eliminating stagnation, and is mainly used for treating cases of external wind-cold sensation and internal injury with cold, with the formula consisting of Angelica dahurica, Rhizoma Ligustici Chuanxiong, Poria, Ginger and Citrus aurantium, etc.. Wuji San is used to express and warm the interior of the body, smooth qi, resolve phlegm, activate blood circulation and eliminate accumulation. Indications of exogenous wind-cold and internal injury with cold. Body heat without sweating, headache and body pain, neck and back constriction (body spasm and convulsion due to wind-cold sensation), chest fullness (chest distension and discomfort), bad food, vomiting and abdominal pain, as well as women’s blood and qi disharmony, pain in the heart and abdomen, menstrual disorders. This formula treats diseases caused by the five accumulations of cold, dampness, qi, blood and phlegm. Taking Wu Ji San should be under the guidance of a Chinese medicine practitioner to identify the symptoms, and individuals should not take the medicine on their own to avoid adverse consequences.