Aidus & E-Fong Herbal Solution
Herbal Medicine for Inducing Diuresis and Removing Dampness- Shi Wei

                                              Shi Wei
                              
                                                                                        
                                           Pyrrosia Leaf
                                       Folium Pyrrosiae

This herb is the leaf of the perennial herbaceous evergreen plant Pyrrosia sheareri (Bak.) Ching. and P. petiolosa (Christ)
Ching. or Pyrrosia lingua (Thunb. ) Farw. of family Polypodiaceae. The wild plants are produced throughout China, mainly in
Zhe Jiang, Jiang Su, Hu Bei, He Nan, He Bei, and other provinces of China. The herb can be collected all the year round,
cleared of rhizomes and fi- brous rootlets, dried in the sun, cut into pieces and used unprepared.
Properties: The herb is sweet and bitter in flavour, slightly cold in nature. It acts on the lung and urinary bladder channels.
Being sweet and cold for eliminating fire, and bitter and cold for expelling heat, the herb can clear lung heat, normalize
functions of the urinary bladder, and cool blood and stop bleeding. Therefore, it is often used to treat stranguria due to heat,
stranguria with blood, cough due to lung-heat, and bleeding due to blood-heat.
Effects: Inducing diuresis to treat stranguria; removing heat from the lung to  dissolve phlegm, and eliminating heat from blood
to stop bleeding.
Indications:
1. To treat stranguria due to heat, stranguria with blood, and dribbling urination with difficulty and pain, the herb is often used
in combination with Zhi Zi (capejasmine fruit), Pu Huang (cat-tail pollen), Hua Shi (talc), Hai Jin Sha (climbing fern spore) and
other herbs for clearing heat to treat stranguria, and for removing heat from blood to stop bleeding.
2. To treat cough due to accumulation of phlegm and heat in the lung, yellow sputum and sore throat, the herb can be used
alone with its decoction, or in combination with Huang Qin (scutellaria root), Bei Mu (fritillary bulb), Jie Geng (platycodon
root) and other herbs for removing heat from the lung to dissolve phlegm.
In addition, to treat various kinds of bleeding, such as hemolysis and epistaxis due to blood-heat, the herb can be used in
combination with Da Ji (Japanese thisrle), Xiao Ji (field thistle), Bai Mao Gen (cogongrass rhizome), Di Huang (raw rehmannia
root) and other cooling herbs to stop bleeding.
Dosage and Administration: 5~1 0 g .
Modern Researches: The decoction of the herb has the effects of inhibiting Staphylococcus aureus and influenza virus,
relieving cough and clearing phlegm.