The source is from the dried ripe fruit of Cnidium onnierii (L.) cusson, family Umbellifeme. The medicinal material is produced all over China, collected in summer and autumn when the fruit is ripe, the stems of the plant being cut down, dried in the sun, threshed to get the fruits and then sieved. The crude is used for medication.

Medicinal Properties: Pungent and bitter in flavor, mild in nature, slightly toxic and attributive to the kidney meridian.

Actions: Eliminate dampness and destroy parasites, warm the kidney and strengthen yang.

Application
1. It can be used for pudendum itching caused by dampness, eczema, exudative ulcer and tinea. In treating pudendum itching, eczema of scrotum, it is alone decocted to wash the local area, or together with Mingfan (A1umen ) , Kushen ( Radix Sophorae Flavescentis ), and Huangbai (Cortex Phetlodendri). In treating tinea, it can be ground into powder and applied to the local area with oil.
2. For leukorrhea of cold-damp type, lumbago caused by damp-Bi-syndrome. In treating leukorrhea of cold-damp type, it can be used in combination with Shanzhuyu (Fruetus Corni), Cheqianzi (Semen Plantaginis), and Xiangfu (Rhizoma Cyperi), etc. In treating lumbago caused by damp-Bi-syndrome, it is used in combination with Sangjisheng ( Ramulus Taxilli ), Duzhong ( Cortex Eucommiae ), and Qinjiao ( Radix Gentianae Macrophyllae ) , etc.
3. For deficiency of kidney-yang, deficiency-cold of the lower energizer manifested as impotence and sterility, it can be used together with Wuweizi (Fructus Schisandrae) and Tusizi (Semen Cuscutae ), which are ground together into powder and made into pill with honey for oral use.

Usage and Dosage:
For oral use, 3 -10 g is used in decoction, or in pill or powder. For external use, it is decocted to wash the local area, or ground into powder and applied to the local area. The amount should be proper.

Notes:
It is not suitable for those with hyperactivity of fire due to yin deficiency or those with dampness and heat in the lower energizer.