Parts of the plant used: the leaves which are dried in the sun and used raw or treated.Zones of influence on the human body: lung and liver meridiansFlavor: bitter and sweet- Expel Heat - Clear Lung and Stop Cough (QING FEI ZHI KE) - Clear Liver and Clear Eyes (QING GAN MING MU) - Cool Blood and Stop Bleeding (LIANG XUE ZHI XUE) - Stop Sweating nocturnal (ZHI DAO HAN).To be used in case of:- fever - cough, thick sputum, dry throat and nose - Sore, red, swollen and dry eyes with sensation of foreign body in the eyes - Dizziness - Vomiting and coughing up blood from Heat in the Blood - Night sweats: take powder ( 6 to 9 g) with rice water.Dosage: 5 to 10 g per day in decoction.50 to 100 g for ocular instillation.