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Answer: What the world calls "Qi Zhong" (sudden collapse due to emotional Qi stagnation), although not explicitly recorded in medical formularies, stems from the fact that excessive joy damages Yang Qi and excessive anger damages Yin Qi. Furthermore, individuals suffering from unexpected sorrow often experience severe Qi reversal, frequently contracting this disease. Patients may feel a surge of phlegm-fluids, mental confusion, and obstruction, along with lockjaw. If treated generally as stroke symptoms, it is not only inappropriate but often fatal. The Classics state: "Sudden aphonia with absent pulse will resolve spontaneously." This refers to sudden Qi rebellion; once Qi returns to normal, the condition resolves. Thus, the phenomenon of sudden apparent death followed by recovery after a short while precisely describes this condition.

Suhe Xiang Wan (Styrax Pill) treats transmissive consumption with bone-steaming fever, lung wasting with parasitic invasion, sudden heart pain caused by malevolent spirits, cholera with vomiting and diarrhea, seasonal epidemic pathogens, miasmic malaria, severe dysentery with red and white discharge, blood stasis causing amenorrhea, abdominal masses with swelling, fright epilepsy caused by malevolent invasion, pediatric vomiting and diarrhea related to breastfeeding, and adult conditions such as Huoxuan disease (fox-spirit disease).

Ingredients: Suhe Xiang You (Styrax Oil, 1 liang, added to Anxi Xiang Gao); Baizhu (Atractylodis Rhizoma, 2 liang); Dingxiang (Caryophylli Flos, 2 liang); Zhusha (Cinnabar, 2 liang, washed with water and ground); Anxi Xiang (Styrax Resin, 2 liang, ground separately into powder, decocted with 1 sheng of pure wine without ash into a paste); Muxiang (Aucklandiae Radix, 2 liang); Baitan Xiang (Santalum Album Lignum, 2 liang); Xunlu Xiang (Olibanum, 1 liang, ground separately); Chenxiang (Aquilariae Lignum Resinatum, 2 liang); Wuxi Xie (Rhinocerotis Cornu, 2 liang); Bibo (Piperis Longi Fructus, 2 liang); Xiangfuzi (Cyperi Rhizoma, 2 liang, stir-fried); Helile (Terminalia Chebula Retz., 2 liang, baked and peeled); Shexiang (Moschus, 2 liang, ground separately); Longnao (Borneolum Syntheticum, 1 liang, ground).

Grind all ingredients into fine powder and mix thoroughly. Combine with Styrax paste and refined white honey to form pills. Roll into pills the size of Sophora japonica seeds.

In the morning, take Jinghua Water (first-drawn well water at dawn), at any temperature suitable, and dissolve four pills for administration.

Answer: Wind is Yang Qi; Cold is Yin pathogen. When Yin Qi rises into the Yang aspect, chills occur; when Yang Qi sinks into the Yin aspect, fever occurs. Yin-Yang imbalance leads to alternating chills and fever. The Classics state: "Summer injury by heat causes autumn malaria," which illustrates this principle. In women, symptoms of alternating chills and fever not caused by summer heat are due to disharmony of Ying (Nutritive) and Wei (Defensive) mechanisms. Wei corresponds to Qi, which is Yang; weak Yang results in aversion to cold. Ying corresponds to Blood, which is Yin; deficient Yin results in fever. Therefore, women's alternating chills and fever are mostly caused by Qi and Blood disorders. Whether due to labor-induced weakness or amenorrhea leading to chills and fever, if prolonged, these conditions develop into deficiency consumptive diseases.

Biying San (Must-Respond Powder) treats chronic alternating chills and fever resembling malaria.

Ingredients: Shudi (Rehmanniae Radix Preparata), Binglang (Arecae Semen), Chenpi (Citri Reticulatae Pericarpium), Caoguo (Tsaoko Fructus, peeled), Danggui (Angelicae Sinensis Radix), Sharen (Amomi Fructus Rotundus), Gancao (Glycyrrhizae Radix et Rhizoma, honey-fried), Chaihu (Bupleuri Radix) — all in equal proportions.

Grind into coarse powder. Take 3 qian per dose, add 2 zhan of water and 5 slices of ginger, decoct until reduced to 8 fen. Strain and take warm at any time. During preparation, avoid exposure to chickens, dogs, and women.

Another formula: Chishao (Paeoniae Radix Rubra), Baizhu (Atractylodis Rhizoma, each 2 liang), Chifu (Poria Cocos), Danggui (Angelicae Sinensis Radix), Rougui (Cinnamomi Cortex), Biejia (Testudinis Carapax et Plastrum), Chuanxiong (Ligustici Chuanxiong Rhizoma), Zhiqiao (Aurantii Fructus Immaturus), Chaihu (Bupleuri Radix), Huangqin (Scutellariae Radix), Qinjiao (Gentianae Macrophyllae Radix), Jiegeng (Platycodonis Radix), Juhong (Citri Reticulatae Pericarpium Rubrum), Gancao (Glycyrrhizae Radix et Rhizoma, each 1 liang), Muxiang (Aucklandiae Radix).

Cut into pieces. Take 3 qian per dose, add 2 zhan of water, 5 slices of ginger, and 1 jujube, decoct until reduced to 8 fen. Strain and take warm, without restriction on timing.