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Wind-warmth (Fengwen) originates from contracting the spring wind. If mistakenly treated with sweating methods, it causes burning heat and consumption of body fluids. The pulse at both Yin and Yang positions is floating, making speech difficult; the body feels heavy, there is excessive sleepiness, and snoring breaths are heard. If mistakenly treated with purgation, it leads to staring eyes and loss of bladder control or scanty urine. If subjected to fire therapy, jaundice, convulsions, and惊痫 (epileptic seizures) may occur. The primary treatment is Weirui Tang (Reed Rhizome Decoction); if accompanied by Guizhi Tang (Cinnamon Twig Decoction) and Renshen Baihu Tang (Ginseng White Tiger Decoction) patterns, they are combined. One error (one reversal) may prolong life, but two errors (two reversals) lead to death.

[Note] Those who contracted cold in winter without immediate illness are said to have Wenbing (Warm Disease); if they subsequently contract the spring wind, it is called Fengwen (Wind-Warmth). Fengwen presents with sweating and should not be treated with diaphoresis. If mistakenly sweated, it further aids the fire pathogen, causing body heat like fire, continuous spontaneous sweating, difficulty speaking, heaviness of the body, somnolence, and snoring respiration. In Fengwen, the pulses at both Yin and Yang positions are floating, so purgation is contraindicated. If mistakenly purged, heat sinks into the Bladder, exhausting body fluids, leading to staring eyes and loss of bladder control or scanty urination. When Wind-Damp-Heat is abundant, if mistakenly subjected to fire fumigation to force sweating, the fire flares up and fluids perish, causing jaundice, convulsions, and epileptic seizures. For Fengwen, neither sweating nor purging is indicated; the main formula is Weirui Tang. If the pulse is deficient and sweating is profuse, Guizhi Tang combined with Renshen Baihu Tang is used. "One reversal prolongs days, two reversals end life" means that one error may delay death, but if one both sweats and purges, or purges and then applies fire, it constitutes a second reversal, which accelerates the fatal outcome.

Wenmang (Warm Malaria) results from contracting wind in winter. Cold qi hides within the bone marrow. By spring, the pathogenic qi cannot emerge. When summer heat scorches the marrow and consumes muscle mass, or when physical exertion causes the couli (pores) to open, the pathogen exits with sweat, generating heat. As the heat declines, qi returns, leading to subsequent chills. The symptoms resemble those of Warm-Thermal diseases, and the treatment is the same.

[Note] The Classics state: "Warm malaria arises from winter wind-strike; cold qi hides in the bone marrow." By spring, Yang qi is still weak, so the pathogen cannot exit spontaneously. Encountering intense summer heat, it scorces the brain marrow and consumes muscles. The couli open due to heat or physical exertion, allowing the pathogen to exit with sweat. Exit leads to Yin deficiency and Yang excess, thus generating heat. Decline allows Qi to re-enter, leading to Yang deficiency and Yin excess, thus generating cold later. Its symptoms are identical to warm-thermal diseases, and its treatment is also the same.

When Warm disease recurs and is injured by Dampness, it becomes Shiwengang (Damp-Warmth). Symptoms include heavy body, chest fullness, headache, delirious speech, profuse sweating, and coldness in both lower legs. Treatment involves Baihu Tang (White Tiger Decoction) added with Cangzhu (Atractylodis Rhizoma) and Fuling (Poria).

[Note] When a Warm disease is re-injured by dampness, it is called Shiwengang (Damp-Warmth). Its manifestations include a heavy body, chest oppression, headache, delirium, profuse sweating, and coldness in the lower legs. It is appropriate to use Baihu Tang (White Tiger Decoction) augmented with Cangzhu (Atractylodis Rhizoma) and Fuling (Poria), employing a method that treats both Warmth and Dampness simultaneously.