Sinking incense, also known as sinking agarwood, purple vine incense, and sinking truth. Recorded in "Hai Yao Ben Cao". It is the heartwood of the root of Dalbergia odorifera T.Chen, a leguminous plant. It can be harvested all year round. The trunk is peeled and the white wood is sawn into segments; or the root is dug out, peeled, and sawn into segments. It is dried in the shade.
[Processing method] "Grate" according to "Microdiscourse on Pediatric Health". "Pound to pieces" according to "Universal Relief Formulas". "Fine grate" according to "The Complete Book of Jingyue". Currently, take the original medicinal material, remove impurities and edge materials, and cut into small pieces, slice, or grind into fine powder.
[Appearance of prepared slices] Irregular small fragments or extremely thin slices or fine powder, with a purple-red or reddish-brown surface and dense texture. Hard texture, rich in oil. The powder is purple-red or purple-brown. Fragrant smell, slightly bitter taste.
[Processing function] Sinking incense has a pungent and warm taste. It belongs to the liver and spleen meridians. It has the functions of promoting qi circulation, activating blood circulation, relieving pain, stopping bleeding, reducing qi, and dispelling filth. This herb is mostly used in the form of raw herbs, and it is used for abdominal pain, liver depression and rib pain, chest pain, injuries from falls or blows, and external bleeding. After processing, the medicinal material becomes clean, making it easier to formulate and prepare.
