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Commentary states: The manifestations of Taiyang malaria are described in the *Neijing* as causing lower back pain, heaviness of the head, cold sensation arising from the back, preceded by chills followed by fever, accompanied by irritability. After the fever subsides, sweating is difficult to stop; treatment involves pricking the Weizhong (BL40) acupoint to bleed. This is because the Bladder Meridian descends to the middle of the waist, ascends to the vertex, and connects with the brain; thus, lower back pain, head heaviness, and cold arising from the back occur. Due to meridian deficiency allowing pathogenic factors to invade, chills precede fever. The difficulty in stopping sweating after fever subsides is due to the True Qi being unable to overcome the pathogenic factors.

Chaihu Decoction for treating Taiyang malaria with alternating chills and fever:
Chaihu (Radix Bupleuri, remove seedlings), Changshan (Cortex Dichroae, cut into pieces), Biejia (Carapax et Plastrum Testudinis, remove skirt edge, stir-fry with vinegar until yellow), Zhimu (Rhizoma Anemarrhenae, roast), Qinghao (Herba Artemisiae Annuae, dried), Gancao (Radix Glycyrrhizae, stir-fry and cut into pieces), Zhike (Pericarpium Citri Reticulatae, remove pulp).
The above eight ingredients are coarsely crushed and sieved. Each dose consists of 3 qianbi (approx. 9-15g depending on historical standard, here kept as unit), boiled in one zhan (approx. 200ml) of water, with seven willow branch hearts and two cun (approx. 6cm) of scallion white finely cut. Simmer together until reduced to 7/10 volume, strain, and take warm on an empty stomach. Take another dose before the onset of symptoms.

Jiu Jian Yin (Wine-Decoction Drink) for treating Taiyang malaria with lower back pain, head heaviness, and alternating chills and fever:
Changshan (Cortex Dichroae, 1 liang), Biejia (Carapax et Plastrum Testudinis, remove skirt edge, stir-fry with vinegar until yellow, 1 liang), Zhimu (Rhizoma Anemarrhenae, 3 fen), Baitouweng (Radix Pulsatillae, 3 fen), Gui (Cortex Cinnamomi, remove rough bark, 0.5 liang), Qinghao (Herba Artemisiae Annuae, one handful), Gancao (Radix Glycyrrhizae, raw, 3 fen), Taoli Zhitou Xin (Hearts of peach and plum branches, each 7 pieces), Congxie (Scallion white and Rhizoma Allii Macrostemonis, each 7 stems), Chaihu (Radix Bupleuri, remove seedlings, 3 fen).
The above twelve ingredients are finely cut to the size of hemp seeds. Each dose consists of 5 qianbi, soaked overnight in 1.5 zhan of wine. In the morning, simmer to obtain one zhan, strain, and take all at once on an empty stomach. Phlegm should be vomited out. The dregs can be re-decocted and taken.

Chaihu Guijiang Tang (Bupleurum and Cinnamon Twig Decoction) for treating Taiyang malaria with lower back pain, head heaviness, more chills than fever:
Chaihu (Radix Bupleuri, remove seedlings, 8 liang), Guizhi (Ramulus Cinnamomi, remove rough bark, 2 liang), Huangqin (Radix Scutellariae, remove black heart, 3 liang), Gualougen (Radix Trichosanthis, 4 liang), Muli (Concha Ostreae, calcined), Gancao (Radix Glycyrrhizae, stir-fried), Ganjiang (Rhizoma Zingiberis, quantity omitted in source text but listed as ingredient).
The above seven ingredients are chewed/crushed. Each dose consists of 5 qianbi, boiled in two zhan of water until reduced to one zhan. Strain and take warm, three times daily. Mild irritability upon initial administration indicates the onset of cure through sweating.

Muli Tang (Oyster Shell Decoction) for treating Taiyang malaria:
Muli (Concha Ostreae, calcined, 4 liang), Mahuang (Herba Ephedrae, remove root joints, boil and skim foam, roast, 4 liang), Gancao (Radix Glycyrrhizae, stir-fried, 2 liang), Shuqi (Herba Perillae frutescentis var. crispae or similar, 3 liang; if unavailable, substitute with Changshan).
The above four ingredients are crushed. Each dose consists of 5 qianbi, boiled in two zhan of water until reduced to one zhan. Strain and take warm. If vomiting occurs, do not continue administration.