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Heat is exuberant accompanied by irritability, the hands and feet are naturally warm, and the pulse is floating and tight. This is a wind-injury presenting with a cold-injury pulse. There is no irritability, slight heat, slight coldness of the four limbs, and the pulse is floating and slow. This is a cold-injury presenting with a wind-injury pulse. Both conditions involve simultaneous disease of Ying (Nutritive) and Wei (Defensive), and according to treatment principles, Da Qing Long Tang (Great Blue Dragon Decoction) should be used. However, it must not be used lightly; it can only be administered when both wind and cold pathogens are abundant and accompanied by irritability. A more stable method is to use Guizhi Tang (Cinnamon Twig Decoction) and Mahuang Tang (Ephedra Decoction); now it is changed to Qianghuo Tang (Notopterygium Decoction).

Originally a Taiyang disease (Disease of the Solar Channel), if treated with sweating, purging, or promoting urination, leading to depletion of body fluids, dryness in the Stomach, and transformation into Yangming disease (Disease of the Yang Brightness), this is called Pi Yue (Splee Constriction).
If there is aversion to cold, use Shengma Gegen Tang (Kudzu Root and Rhizoma Cimicifugae Decoction); if there is no aversion to cold but rather aversion to heat, with difficulty in defecation, use Baihu Tang (White Tiger Decoction). If delirium occurs, treat with Tiaowei Chengqi Tang (Regulate the Stomach and Order the Qi Decoction) by purging. If there is wheezing and chest fullness, do not purge; use Mahuang Tang (Ephedra Decoction).
Taiyang-Shaoyang combined disease (Combined Disease of the Solar and Lesser Yang Channels), characterized by stiffness and tension of the head and neck, hardness and fullness below the hypochondrium, dizziness, alternating chills and fever, is treated with Xiao Chaihu Tang (Minor Bupleurum Decoction).
Shaoyang-Yangming combined disease: originally a Shaoyang disease (Disease of the Lesser Yang Channel), which, after sweating and promoting urination, leads to dryness in the Stomach and difficulty in defecation, belongs to Tiaowei Chengqi Tang (Regulate the Stomach and Order the Qi Decoction).
Zhengyang Yangming (True Yang Yangming): caused by exuberance of Wind pathogen and excess of Qi in its own channel; Daxiehu Tang (Major Bupleurum Decoction) or Da/Xiao Chengqi Tang (Major/Minor Order the Qi Decoctions) are selected for use.
Three-Yang combined disease (Combined Disease of the Three Yang Channels), characterized by abdominal fullness, heaviness of the body, delirium, urinary incontinence, and numbness/unresponsiveness of the mouth, belongs to Baihu Tang (White Tiger Decoction). For cases with dry mouth and tongue, numbness, and aversion to cold on the back, similar to Taiyang-Yangming, Shaoyang-Yangming, and Zhengyang Yangming without exterior signs, purging may be applied. Only those with aversion to cold belong to Taiyang-Yangming combined disease, where the pathogen has not yet passed through the channels, remaining an exterior syndrome, so sweating can be induced using Guizhi Mahuang Banhen Tang (Guizhi and Mahuang Half-Size Decoction). Generally, if the pathogen is in the channels/exterior, use sweating; if it has passed into the interior, use purging.

Originally a Taiyang disease, if sweating is induced but sweat is not thorough, it transforms into Yangming disease, continuing with slight spontaneous sweating and no aversion to cold, indicating the pathogen has merged into Yangming. If Taiyang symptoms still exist, use Guizhi Mahuang Banhen Tang (Guizhi and Mahuang Half-Size Decoction), which treats Taiyang disease. Da/Xiao Chengqi Tang (Major/Minor Order the Qi Decoctions) treat Yangming disease.

Warm-heat diseases arise from contracting Cold in winter, which does not immediately manifest; Cold toxicity hides in the skin and muscles, transforming into Warm disease in spring and Summerheat disease in summer. Summerheat disease is hotter than Warm disease. Warm disease occurs during the three months of spring before the Summer Solstice. Symptoms include fever, cough, headache, body pain, dry mouth and thirst, and a floating-stringy pulse. For severe heat, use Xiao Chaihu Tang (Minor Bupleurum Decoction). For mild heat, use Shengma Gegen Tang (Kudzu Root and Rhizoma Cimicifugae Decoction) or Jieji Tang (Release the Muscle Decoction). For slight heat without thirst, use Xiao Chaihu Tang (Minor Bupleurum Decoction) plus Guizhi (Cinnamon Twig); for thirst, add Wuweizi (Schisandra Berry); if thirsty, remove Banxia (Pinellia Tuber) and add Gualou (Trichosanthes Fruit) and Renshen (Ginseng Root). For solid pulse with irritability and thirst, use Daxiehu Tang (Major Bupleurum Decoction) to slightly promote bowel movement, as a solid pulse indicates inevitable difficulty in defecation. For deficiency irritability, use Zhuye Shigao Tang (Bamboo Leaf and Gypsum Decoction); however, using Qianghuo Tang (Notopterygium Decoction) to release the exterior is more appropriate; for thirst, add Zhimu (Anemarrhena Rhizome) and Shigao (Gypsum Fibrosum).
Summer heat diseases present with fever, headache, heavy body pain, no aversion to cold but aversion to heat, and a洪 (Flood/Surging) pulse; warming methods are contraindicated, and Qianghuo Tang (Notopterygium Decoction) is suitable. For thirst, add Zhimu (Anemarrhena Rhizome) and Shigao (Gypsum Fibrosum). Diseases occurring from March to summer are called late-onset, treated with Zhizi Shengma Tang (Gardenia and Rhizoma Cimicifugae Decoction). If Shaoyang symptoms exist, use Xiao Chaihu Tang (Minor Bupleurum Decoction), selecting from the aforementioned formulas. If aversion to wind and cold occur in spring and summer, resembling cold-injury symptoms, this is due to sudden exposure to wind-cold qi causing a new disease, not winter cold contraction; generally, treat with Qianghuo Tang (Notopterygium Decoction).