Digu Pi Powder

Digu Pi Powder

Rehmannia 3 qian, Angelica 3 qian, Ligusticum 1 qian, White Peony 3 qian, Moutan Bark 3 qian, Digu Pi 3 qian

Ke Yunbo said, "When yin is deficient, yang gathers, causing heat." Zhang Zhongjing stated that weak yin leads to fever, with yang qi trapped in yin, inevitably causing heat. However, one should divide yin into three categories and treat them separately: if yang evil is trapped in the Taiyin spleen, use Zhongyi Yi Qi Tang to lift it up, restore yang to its rightful place, and let the fire extinguish itself. If it is trapped in the Shaoyin kidney, use Liu Wei Di Huang Wan to counter it, strengthening the master of water and letting the fire subside. If it is trapped in the Jueyin liver, use Digu Pi Yin to cool and nourish, allowing blood to find a home and the fire to settle down. Si Wu Tang is a formula for nourishing yin and regulating blood in the liver, adding Digu Pi to clear the fire in the mind (1) to stabilize the kidney and nourish its mother; adding Moutan Bark to clear the fire in the spirit (2) to cool the heart and drain its child. Both peels are cool and non-greasy, but they clear liver fire without harming the spleen and stomach, unlike the bitter and cold formulas of Si Wu plus Zhibai. Therefore, Xiaoyao San is effective for treating liver fire stagnation within the organ itself, allowing wood qi to flow freely and conform to its nature. Digu Pi Yin treats yang evil trapped in the liver, removing the intruder and preventing further trouble. Both are powerful formulas for the liver.

[Note] (1) Fire in the mind: fire in the kidney, dragon-thunder fire. (2) Fire in the spirit: fire in the heart, emperor fire.

[Note] This formula originates from "Jufang." It treats yin deficiency with fever, and women's heat entering the blood chamber.