Upcast yáng

From On Cold Damage (伤寒论 shāng hán lùn, biàn jué yīn bìng mài zhèng bìng zhì). A critical disease pattern of true lower body cold and false upper body heat that arises when in debilitation of the lower origin, true yáng floats astray and that is characterized by tidal reddening of the cheeks and attributable to vacuous yáng floating upward. The tidal reddening is characterized by pale red patches, giving the cheeks the appearance of having been dabbed with rouge. Since the patches often constantly change location, this complexion is often described as a floating red facial complexion. It is a sign of false heat accompanied by other signs such as nosebleed and bleeding gums, sore swollen throat, and dry mouth. The true cold is reflected in counterflow cold of the lower limbs and long voidings of clear urine, and a moist black tongue fur. The pulse is large and floating, but vacuous and forceless. In severe cases, it is faint and fine, verging on expiration.

Comparison: Upcast yáng is similar to exuberant yīn repelling yáng. Both are true cold and false heat. Upcast yáng is lower body vacuity cold with false upper body heat, whereas exuberant yīn repelling yáng is true internal cold with false external heat. The two patterns cannot be categorically separated.

Etymology

Chinese: 戴 dài, to wear on the head; to look upward; 阳 yáng, the compliment of yīn.