Shiwei Essential Oil is extracted from a dried leaf of Folium Pyrrosiae. It is good for bloody painful urinary dysfunction and Dampheat painful urinary dyfunction. It also help stopping coughing and wheezing by clearing Lung heat and irretable uterine bleeding by cooling blood and stopping bleeding in the lower jiao. Combined with Haijinsha and Jinqiancao are particular effective at treating stony painful urinary dysfunction.
Modern research shows that Shiwei Essential Oil helps kidney protection, antitussive and expectorant,  hypoglycemic and antiviral,etc.
Usage: 1-2 drops each time
Note:
Contraindicated for those with Yin deficiency and no dampness or heat;
Avoid copper and iron utensils.