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Whenever a pregnancy reaches four or five months, and the patient suffers from hematemesis (vomiting blood), epistaxis (nosebleed), or hemorrhage due to trauma, suddenly presenting with trismus (lockjaw), nuchal rigidity (stiff neck), difficulty in moving limbs, and opisthotonos (arching of the back like a bow), symptoms resembling Zhong Feng (Wind Stroke), one must not mistakenly treat it as true Wind Stroke using formulas that clear fire and resolve phlegm. It is appropriate to administer An Tai Yin (Fetus-Calming Decoction), focusing primarily on nourishing blood, assisted by herbs that dispel wind and resolve phlegm, thereby avoiding mismanagement.

Bu Xue An Tai Li Feng Tang (Blood-Nourishing Fetus-Calming Wind-Regulating Decoction)
Chuanxiong Rhizome (Chuanxiong, 2 qian) Gastrodia Tuber (Tianma, 2 qian) Scutellaria Root (Huangqin, 2 qian) Notopterygium Rhizome (Qianghuo, 5 fen) Saposhnikovia Root (Fangfeng, 5 fen) Schizonepeta Spike (Jingjie, 5 fen) White Peony Root (Baishao, 3 fen) Angelica Sinensis Root (Danggui, 3 ginseng Radix et Rhizoma (Renshen, 3 fen) Perilla Leaf (Zisu, 4 fen) Licorice Root (Gancao, 4 fen)

Appendix: Verified Cases
The wife of Shen Yumen from Lebu was six months pregnant. Due to her husband's illness, she engaged in devout fasting and bowing rituals, and also suffered hemorrhage from cutting flesh for healing. She suddenly presented with trismus, nuchal rigidity, and opisthotonos. I used An Tai Yin (Fetus-Calming Decoction) added with phlegm-resolving agents, and her condition stabilized slightly. Later, Fan Dongli strongly criticized my use of tonics for Wind Stroke with phlegm as erroneous. He prescribed a formula to scatter phlegm and clear fire; the patient felt as if stabbed in the heart after taking it and vomited the dregs. I then re-administered the previous formula, doubling the dosage of Renshen (Ginseng), and after twenty doses, both mother and child were safe.
Another case involved the wife of Zhao Fangqiao from Shangyu, who at five months of pregnancy suffered epistaxis losing two sheng of blood, presenting with dizziness, trismus, and hand tremors. I treated her with An Tai Yin (Fetus-Calming Decoction), doubling the dosage of Renshen (Ginseng) and Danggui (Angelica Sinensis Root), and adding Chuanxiong Rhizome (Chuanxiong), Gastrodia Tuber (Tianma), Rhinoceros Horn (Xijiao - *note: modern substitutes often used*), and Rehmannia Root (Shengdi), resulting in recovery.
These records are provided to demonstrate that miscellaneous diseases in pregnant women must be treated primarily by calming the fetus and nourishing blood.

If a pregnant woman suffers from deficiency-induced tidal fever, bone-steaming sensation (bone-deep heat), weakness, metrorrhagia (Beng Lou), or poor appetite, these conditions lead to insufficient Qi and Blood in the mother, affecting the fetus. If prolonged without stimulating movement, or if fetal unrest attacks upward, or if trauma causes the fetus to cease moving, making it difficult to distinguish between a living and dead fetus; or if a febrile disease damages the fetus; or if accidental ingestion of abortifacient drugs or amaranth causes blood circulation acceleration forcing the fetus out, one must absolutely not use formulas intended to expel the fetus or recklessly discuss removing the fetus to save the mother. One must replenish the mother's Qi and Blood. Once physical strength is restored, the fetus will naturally begin to move. Even if the fetus has died, nourishing blood will facilitate its natural expulsion, ensuring safety for both. However, attacking the fetus in a weakened mother often results in the loss of the fetus followed by the death of the mother. Caution is essential.
If a pregnant woman contracts Shang Han (Cold Damage) or Yi Bing (Epidemic Disease), prolonged fever can cause miscarriage. Post-miscarriage, fever may increase because the heat consumes Yin Blood, followed by blood loss from delivery.
Practitioners must not rashly argue that Shang Han or epidemic pathogens remain and mistakenly prescribe Zhizi Chi Tang (Gardenia and Fermented Soybean Decoction), Huangqin (Scutellaria Root), or Huangbai (Phellodendron Bark). If there are alternating chills and fever, Chai Hu (Bupleurum Root) should not be used. If there is tidal fever with constipation of stool and urine, Cheng Qi Tang (Order the Qi Decoction) or Wu Ling San (Five Ingredient Powder with Poria) should not be administered. It is suitable to frequently consume Sheng Hua Tang (Generate the New Decoction), taking two doses at a time, without limiting the number of doses, until the fever subsides and medication stops. If signs of collapse appear, such as pallor, excessive sweating, or thirst, add Sheng Mai San (Generate the Pulse Powder) after two doses, using Renshen (Ginseng) and Maidong (Ophiopogon Tuber) to prevent syncope and critical conditions. Furthermore, Sheng Hua Tang contains Chuanxiong Rhizome (Chuanxiong), whose pungent nature disperses pathogens, and Ganjiang (Dried Ginger), which assists blood-invigorating herbs to clear severe Yin-fire heat. For cases of constipation and burning heat, frequent consumption of Sheng Hua Tang naturally generates fluids through accumulation, leading to free passage of bowel and bladder movements. Using cold-natured medicines for heat syndromes further damages Middle Jiao Qi, and since blood stagnates when exposed to cold, myriad complications arise, which is a grave error.