A ship captain, taking advantage of hunger, indulged in eating, then removed his clothes and felt the wind. The next day, he had a fever without sweating and felt discomfort in his chest and diaphragm. Bai Ling diagnosed it as food injury (dyspepsia) and treated it with purgation, which was ineffective. Hongchang considered it as apoplexy due to cold from removing clothes and treated it by inducing sweating, which also did not work. Later, Hongchang tried various treatments for several days, and the patient gradually felt drowsy and fatigued, with high breathing. The sedan chair bearers from Shanzhou sought treatment on his behalf.

It was a case of taiyang disease, with slight panting due to unresolved external symptoms, treated with Cinnamon Twig plus Magnolia Bark and Apricot Decoction. This is a method from Zhongjing. After one dose, the panting stopped, and after a second dose, the fever subsided and the cold lessened. By evening, the body cooled and the pulse normalized. Such is the efficacy, isn't it essential to thoroughly study the "Cold-Damage Disease Treatise"?