Peony Bark, also known as Peony Root Bark or Danpi, is the root bark of the plant Paeonia suffruticosa Andr. of the family Ranunculaceae. In autumn, the roots are harvested, the fine roots are removed, and the root bark is peeled off and dried.
【Processing Method】1. According to the "Essentials from the Golden Cabinet", the Peony Bark should have its core removed. Currently, the original medicinal material is taken, impurities are removed, it is rinsed with water, moistened, sliced thinly, and dried.
2. According to the "Ten Divine Books on Medicinal Herbs", Peony Bark is burned to ash, finely ground, wrapped in paper, covered with a bowl on the ground overnight to eliminate fire toxicity. Currently, the Peony Bark slices are placed in a pot, heated over medium heat, fried until the surface turns blackish-brown, sprayed with a little water to extinguish the sparks, taken out and dried, and cooled.
3. According to the "Thunderous Cannon Roasting Theory", Peony Bark soaked in liquor is finely filed to the size of a soybean, steamed and mixed with clear liquor, left to dry from the noon hour to the hour of the Goat, and used when dry. According to "Annotated Materia Medica", it is soaked in liquor overnight and dried. According to "Comprehensive Collection of Pediatric Diseases", it is stir-fried with liquor. Currently, Peony Bark slices are taken, mixed thoroughly with yellow wine, sealed tightly, placed in a pot, heated over low heat, fried until done, and taken out to cool. For every 100kg of Peony Bark, 12kg of yellow wine is used.
4. According to the "Collection of Verified Formulae for Treating Back Carbuncles", the core and branches of Peony Bark are removed, and it is filed with a cane and fried. According to "Medical Cases by Wu Jutong", it is fried until charred. Currently, Peony Bark slices are placed in a pot, heated over low heat, fried until yellow, and taken out to cool.