The herb known as Guang Ye Shui Su, also known as Wangjiang Qing, is harvested from spring to early winter. The whole plant or roots are used in medicine and can be used to treat sore throat, cough due to wind and heat, and other conditions. Below, we will introduce the efficacy and usage of Guang Ye Shui Su!
【Morphological Characteristics】
Guang Ye Shui Su is a perennial herb, 20-80 cm tall. It is distributed in Hebei, Shandong, Jiangsu, Anhui, Zhejiang, Jiangxi, Fujian, and other provinces in China. It flowers from April to June and fruits from May to July.
Harvesting: It is harvested from spring to early winter.
Chemical composition: The whole plant contains caffeic acid, 4-caffeoylquinic acid, and chlorogenic acid. It also contains three flavonoids: 7-methoxyflavone-7-O-glucoside, Guang Ye Shui Su glycoside, and Guang Ye Shui Su glycoside B. It also contains saponins.
Taste and nature: According to the "Wenling County Medicinal Resources Directory": slightly sweet in taste, neutral in nature.
Usage and dosage: Internal use: decoction, 0.5-1 liang. External use: pound and apply the juice.
【Medicinal Efficacy】
Guang Ye Shui Su has the effects of clearing heat, resolving phlegm, and antibacterial and anti-inflammatory effects. It is mainly used to treat cough due to wind and heat, sore throat, pertussis, dysentery, and herpes zoster.
1. "Hangzhou Medicinal Plants": "Strong tonic for relieving fatigue."
2. "Folk Medicinal Plants in Zhejiang": "Antibacterial and anti-inflammatory."
3. "Wenling County Medicinal Resources Directory": "Nourishes yin, clears heat, purges fire, and resolves phlegm. Used for wind-heat rising, sore throat, cough, hoarseness, and herpes sores."
【Clinical Usage】
1. Treatment of pertussis: Guang Ye Shui Su, 5-10 grams, with the addition of rock sugar or white sugar as appropriate, decocted in water and taken orally.
2. Treatment of tonsillitis, pharyngitis, and other throat conditions: Guang Ye Shui Su, including the roots and whole plant, 10 grams, or with the addition of Niuxi (Achyranthes bidentata) 10 grams and Huanghua (Sophora flavescens) 5 grams, decocted in water and taken by mouth.
3. Treatment of herpes zoster: Fresh Guang Ye Shui Su roots, pound and apply the juice to the affected area.
4. Treatment of dysentery: Guang Ye Shui Su, 10-20 grams, decocted in water and taken orally. (Prescription from "Folk Medicinal Plants in Zhejiang")
