It is produced all over the country and is mostly cultivated. It is mainly produced in Jiangsu, Zhejiang and other places, and the products in Suzhou, Jiangsu are the best. Pick them when the flowers are in full bloom in summer and autumn. Sun-dried or low-temperature dried, used raw. The medicinal properties are pungent and slightly cold. Returns to liver and pericardium meridians. Efficacy: Break blood stasis, stimulate menstruation, cool blood and expel wind. Application 1. Blood stasis, amenorrhea, mass accumulation and bruises. The pungent powder of this product can promote blood circulation, break up blood stasis, unblock meridians, disperse syndrome and relieve swelling and pain. To treat blood stasis and amenorrhea, it can be used with Angelica sinensis, safflower, and red peony root, such as Ziwei powder ("Gynecology Jade Ruler"); to treat blood stasis and accumulation of abdominal mass, it can be used with turtle shell, paeonol bark, etc., such as turtle shell Jianwan ("Synopsis of the Golden Chamber"); to treat bruises, it can be pounded and applied alone, or combined with frankincense, myrrh and other medicinal ingredients. 2. Rubella, ringworm, itchy skin, acne. This product is cold in nature, purges heat, cools blood and dispels wind, and is suitable for those with heat in the blood. To treat itching all over the body, "Medicine Zhengzhuan" states that this product alone can be used as a powder, mixed with wine, and can also be used with Rehmannia glutinosa, Danbark, and Tribulus terrestris; to treat rubella and tinea, it can be applied externally with realgar, coptis, araceae, etc. , such as Lingxiaohuasan ("Principles of Syndrome and Treatment"). 3. Blood in the stool, metrorrhagia. This product is cold in nature, clears away heat, cools blood and stops bleeding. For blood-heat, bloody stools and metrorrhagia, it can be ground into powder and taken alone, or it can be used equally with Sanguisorba, Sophora japonica and Radix Rehmanniae. Usage and Dosage: Decoct and take, 310g. Appropriate amount for external use. Please note that pregnant women should not use this product. Abstracts of ancient books 1. "Shen Nong's Materia Medica": Housewives have postpartum lactation disease, collapse, mass, anemia, cold and heat, and weight loss. 2. "Compendium of Materia Medica": It promotes blood circulation and can remove fire in the blood, so it is mainly used for diseases such as lactation, metrorrhagia, and blood heat and wind. 3. "Ben Jing Fengyuan": Lingxiaohua is used to treat the symptoms of mass blood obstruction, tingling blood, wind and malignant sores, all of which are based on its ability to disperse bad blood. Modern Research 1. Chemical composition: Contains apigenin, ?-sitosterol, caprosin, salicylic acid, ferulic acid, etc. 2. Pharmacological effects: The decoction has varying degrees of inhibitory effects on Shigella flexneri and Typhoid bacilli; apigenin has a moderate antispasmodic effect on smooth muscle and can resist ulcers. ?-Sitosterol has the effects of lowering blood cholesterol, relieving cough, anti-cancer, and anti-inflammatory effects. 3. Clinical research: There are reports that Lingxiao flower has been used clinically to treat primary liver cancer, lupus erythematosus, alcoholism, headache, gastrointestinal polyps, measles, etc., and has achieved certain effects.