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Vomiting (Ou Bing) can occur in all meridians; why is it attributed to the Shaoyang (Lesser Yang) meridian? This is because exterior pathogens enter the interior, and the interior Qi resists and blocks them, causing Qi to rebel upward and induce vomiting; thus, it is attributed to the Shaoyang meridian. The appropriate formula is Xiaochaihu Tang (Minor Bupleurum Decoction). If there is hardness and irritability below the heart, or constipation, Dachaihu Tang (Major Bupleurum Decoction) is appropriate. If vomiting occurs due to unresolved exterior syndrome, it belongs to the Taiyang (Greater Yang) meridian, and Chaigui Tang (Bupleurum and Cinnamon Twig Decoction) is appropriate. Desire to vomit after eating food indicates Yangming (Yang Brightness) meridian involvement, primarily due to middle Jiao cold (Zhong Han), and Wuzhuyu Tang (Evodia Decoction) is appropriate. If vomiting worsens after taking this decoction, it indicates exterior heat, and Gegen Banxia Tang (Kudzu and Pinellia Decoction) is appropriate. Vomiting saliva or phlegm, or vomiting roundworms, indicates Jueyin (Terminal Yin) meridian involvement. For those vomiting saliva or phlegm, Wuzhuyu Tang (Evodia Decoction) is appropriate. For those vomiting roundworms, Wumei Wan (Mume Pill) is appropriate. Vomiting accompanied by diarrhea indicates the presence of fluid retention (Shui Qi), belonging to the Shaoyin (Lesser Yin) meridian, and Zhenwu Tang (True Warrior Decoction) is appropriate. Drinking water leads to vomiting, and vomiting leads to a desire to drink; when drinking and vomiting cycle incessantly, this indicates stagnant water (Ting Shui), and Wuling San (Five-Ingredient Powder with Poria) is appropriate.

Chills alternating with fever, where chills and fever follow each other incessantly, are named "alternating chills and fever" (Wang Lai Han Re), which is the principal syndrome of the Shaoyang meridian; Xiaochaihu Tang (Minor Bupleurum Decoction) is appropriate. Chills and fever that have a regular pattern of onset and cessation, occurring once a day or every other day, are called malaria (Nüe), which belongs to miscellaneous diseases. Chills and fever without a regular pattern of onset and cessation, occurring three to five times a day, are called "like malaria" (Ru Nüe), indicating residual exterior pathogens from the Taiyang meridian; Mahuang Guizhi Ge Ban Tang (Half-Dose Combination of Ephedra and Cinnamon Twig Decoction) is appropriate. If heat predominates over chills, Guizhi Er Yuebi Yi Tang (Two Parts Cinnamon Twig and One Part Minor Bupleurum and Gypsum Decoction) is appropriate. If there is sweating, Guizhi Er Mahuang Yi Tang (Two Parts Cinnamon Twig and One Part Ephedra Decoction) is appropriate. If there is no sweating, Mahuang Guizhi Ge Ban Tang (Half-Dose Combination of Ephedra and Cinnamon Twig Decoction) is also appropriate. These are all methods for treating residual mild pathogens of the Taiyang meridian.

Dizziness (Mu Xuan), characterized by blurred vision, and deafness (Er Long), characterized by inability to hear, are both principal syndromes of the Shaoyang meridian and are not fatal signs. However, if improper use of sweating, purging, or emesis methods leads to various transformation syndromes and deteriorated conditions, resulting in dizziness with unconsciousness, or speech disorder indicating dispersion of Shen (Spirit) and collapse of Qi, death is inevitable. If sweating is mistakenly induced in patients with damp-warmth disease, leading to inability to speak, deafness, cyanosis of the body, and discoloration of the face, it is called "chong ming" (severe coma/darkness), which is also a fatal sign.

Abdominal fullness with intermittent pain indicates deficiency (Bu Zu); Guizhi Ji Shaoyao Tang (Cinnamon Twig Decoction Augmented with Peony Root) is appropriate. If ineffective, Lizhong Tang (Regulate the Middle Decoction) should be used. Abdominal fullness with severe pain indicates excess (You Yu); Guizhi Jia Dahuang Tang (Cinnamon Twig Decoction Augmented with Rhubarb) is appropriate. This results from mistaken purgation, causing pathogens to sink into the interior of the Taiyin (Tai Yin) meridian. If tidal fever, spontaneous sweating, and difficulty in defecation occur, it indicates that Taiyin pathogens have transferred to the Yangming meridian; Dachengqi Tang (Major Order the Qi Decoction) is appropriate.