The Shang Han Lun has 398 sections with 113 herbal prescriptions, organised into the Six divisions. It is a part of Shanghan Zabing Lun that is also known as Treatise on Cold Injury.

Shang Han Lun Management of Covid Flu using the concepts from the Macrotherapy system. based on symptoms from the “The Discussions on harmful diseases (symptoms)” written by Zhang Zhong Jing nearly two thousand years ago.