Wei symptom is muscle relaxation to the point of no contraction and occurs in the limbs. Several cases have led to death. This is a clinical report of a Wei symptom patient diagnosed with impairment of body fluid due to lung heat(肺熱傷津). This patient was treated with Chungsangboha-tang(Qingshangbuxia-tang) and had significant improvement in Wei symptom. Results suggest that oriental medicine is an effective treatment for Wei symptom. But more clinical case reports are needed.