The product identification】 【light brown powder. Many starch grains, single grain spherical, polygonal or square type, diameter 8 
 ~ 48μm, Umbilical point crack-like, star, trigeminal-like or dot, visible layer of large grain pattern; multiple grain from the grain group of 2 to 4 pm 
 Percent. Needle crystal bundles of calcium oxalate present in the mucous cells or scattered, the needle crystal length 40 ~ 144μm, diameter of about 5μm. Stone 
 Cell type oval, square or triangular type, diameter of 25 ~ 128μm, colporate fine; otherwise dark brown stone cells, 
 Strip, a diameter of about 50μm, very thick walls on three sides, one side meager. Fiber bundles or scattered in a diameter of 22 ~ 67μm. 
 Bordered pits and tracheid catheter common, mostly bordered pits extend into the ladder. 
 】 【Processing to remove impurities; those who did not slice, soak, wash, run through, cut into thin slices and dry. 
 The properties and return path 【】 sweet, bland, flat. The liver and stomach. 
 【Functions and Indications】 dehumidification, detoxification, Tom Lee joint. Shower for hot and humid cloud, vaginal discharge, carbuncles, M. scrofulaceum, scabies 
 Ringworm, syphilis and mercury poisoning caused by the body Spasm, skeletal pain.