Chai Ge Jie Ji Tang, 100g

This [formula] is [for] unresolved, exterior wind-cold which has become constrained and is transforming into heat. It is also known as simultaneous greater yang and yang brightness-stage disorder, reflected in the increasing fever and decreasing chills. The pathogenic influence which remains in the exterior (greater yang) causes headache, stiffness of the extremities, and a floating pulse. The interior heat (yang brightness) causes irritability, insomnia, orbital and eye pain, dry nasal passages, and a slightly flooding pulse. The condition requires the use of cool, acrid herbs to release the pathogenic influence from the muscle layer while concurrently clearing heat. (Bensky: Chinese Herbal Medicine Formulas & Strategies, 1990)