Amur Corktree Bark

Primarily produced in the Chinese provinces of Sichuan, Chongqing, Guizhou.

Board-shaped or shallow grooved pieces, uneven in length, 3~6mm thick. Outer surface is yellowish-brown, flat or with longitudinal grooves, sometimes one can see scars of lenticels and remnants of grayish-brown rough skin. Inner surface is dark yellow or pale brown, with thin dense longitudinal ridges. Light in weight, hard texture; fractured surface is fibrous, in cracked layers, dark yellow. faint odor, very bitter taste, sticky when chewed.

Superior medicinal material has thick cortex and yellow fractured surface.

Bitter; cold.

Clears heat, dried dampness, drains fire, eliminates steaming, resolves toxin, treats sore. Apply to dysentery due to damp-heat pathogen, jaundice, leukorrhea, pyretic stranguria, beriberi, osteopyrexia, night sweat, emissions, burns and scalds and swelling, eczema and pruritus.

Salt huang bai: Cleans huang bai strips, follows the way of salt water process to fry to dry. Moistens yin, downbears fire. Apply to yin deficiency and fire excess, night sweat and bone steaming. Huang bai charcoal: follows the way of frying charcoal process to fry the huang bai strips till externally burnt-black. Advanced in stopping bleeding.