The common pathogenesis of low back pain includes blood stasis and Qi stagnation, cold and blood stasis, etc. Depending on the pathogenesis, the treatment of low back pain can be carried out by using moxa leaf plus Chuanxiong and Guizhi. However, it is not recommended to take moxa leaves for people with Yin deficiency and blood heat to prevent aggravation of the symptoms caused by Yin deficiency and blood heat, such as five heart-heat (heat in the hearts of the hands and feet, and self-consciousness of the heart and chest), and dryness of the mouth and tongue. 1. Blood stasis and qi stagnation: The treatment of lumbago caused by blood stasis and qi stagnation can be used to move qi and activate blood (promoting the operation of gases to make blood flow). Mugwort has the effect of relieving pain and warming menstruation, and combining it with Rhizoma Ligustici Chuanxiong can enhance the effect of activating blood circulation and qi circulation, and at the same time dispelling wind and relieving pain (dissipating wind evils and relieving musculoskeletal pains), which is useful for treating lumbago and leg pain. 2. Cold blood stasis: mugwort is warm in nature, it can warm the meridians and dispel cold (warm the meridians of the human body, get rid of the cold in the body), with Gui Zhi pungent and warm to help heat, can warm the meridians and relieve cold blood stasis caused by low back and leg pain. If long-term back and leg pain can not be relieved should also be timely to the hospital, with the doctor to check the specific causes, to avoid aggravation with the development of the disease.