In Chinese medicine, there are three treasures of cooling and opening, which include Angong Niuhuang Pill, in addition to Zhi Bao Dan and Zi Xue Dan. Because Angong Niuhuang Wan is cool-opening, therefore, has the effect of clearing heat, generally used in acute fever, such as patients with stroke, high fever, confusion, coma, drowsiness and other conditions, with Angong Niuhuang Wan can clear heat, open the orifice, after the application of the fire down, the patient can slowly wake up, play the role of opening the orifice to wake up. Therefore, Angong Niuhuang Wan has the effect of clearing heat, opening the orifice and awakening the mind, and is applied in acute cases of hyperthermic dizziness and delirium.