髓。长肌肉。作汤。除寒热积聚。疗折跌伤筋。久服身轻不老。又治心热。五心热。益肾水。凉心血。
脉洪实者更宜。戴元礼曰。阴微阳盛。相火炽强。来乘阴位。日渐熬煎。阴虚火旺之证。总宜用家
园生地黄。以滋阴退阳。故麻宜始终用之。
【干生地黄】入脾、肾。凉血滋阴。润皮肤。虚而有热者宜。故麻不宜用之。
【紫草】入心胞络及肝经血分。专于凉血活血。利大小肠血。痘疹未出。热毒甚。大便闭涩。
而毒不得发越者。及已出。紫黑便闭者。俱宜。（痘疹色红或白、二便利者。忌用。）
【紫草茸】（麻证不用）乃麒麟竭树上蚁壤聚其脂液而成。与蜂 蜜无异。出真蜡国者为上。波斯
国者次之。古方以治五脏邪气。金疮崩漏。破积血。生肌止痛。今人专用之治痘疮。为其有活血起
Marrow. Promotes muscle growth. When decocted in water, it eliminates cold-heat accumulations and treats fractures, dislocations, and tendon injuries. Long-term consumption lightens the body and delays aging. It also treats heart heat, five-palm heat (wrist and ankle heat), benefits kidney yin, and cools heart blood.
It is especially suitable for those with a surging, full, and solid pulse. Dai Yuanli stated: "When yin is deficient and yang is excessive, ministerial fire blazes strongly, invading the yin positions, causing gradual depletion. For syndromes of yin deficiency with hyperactive fire, one should always use home-grown Rehmanniae Radix Preparata (Shengdihuang) to nourish yin and subdue yang." Therefore, it [Rehmanniae Radix Preparata] should be used throughout the course of measles treatment.
[Dried Shengdi Huang (Prepared Rehmannia Root)] enters the Spleen and Kidney meridians. It clears heat from the blood, nourishes yin, and moistens the skin. It is suitable for deficiency patterns accompanied by heat. Therefore, it is not suitable for measles.
[Zi Cao (Arnebiae Radix seu Rhizoma / Lithospermi Radix)] enters the Pericardium Luo-connecting vessels and the Blood aspect of the Liver meridian. It specializes in clearing heat from the blood and invigorating blood circulation, benefiting the blood of the large and small intestines. It is indicated when eruptions have not yet appeared, toxic heat is severe, bowel movements are obstructed, and toxins cannot be vented; as well as when eruptions have appeared but are purple-black with constipation. (Contraindicated if eruptions are red or white and bowel/bladder functions are normal.)
[Zi Cao Rong (Dragon's Blood Resin / Styrax Benzoin? Note: Text describes ant-collected resin on Dragon's Blood tree, likely referring to a specific variant or folk term, literally "Purple Grass Fleece")** (Not used for measles): It is formed by ants gathering the resinous fluid on the Dragon's Blood Tree (Dracaena cinnabari). It is no different from bee wax. The variety from Zhenla (Chenla/Cambodia) is superior; that from Persia is secondary. Ancient formulas used it to treat evil qi in the five zang organs, traumatic bleeding, breaking up accumulated blood, promoting tissue regeneration, and relieving pain. Modern practitioners use it specifically for treating smallpox because it has blood-invigorating and lifting [properties]...