After the medicinal oil is leached, the oil and the medicine are poured into the pot and decocted with warm fire. When the medicine fragrance floats out, remove the residue and throw it away. After the oil is cooled, it is carefully filtered with fine gauze and sealed in an oil drum. Asarum: The color is blue, and the five elements belong to wood. Compendium of materia medica? "Cao Bu" records: "Asarum is mainly used to treat contracture of joints and rheumatism. Take advantage of nine tricks for a long time and intellectual man fit for many years. Consolidate the five internal organs, benefit the liver and gallbladder, and pass the essence. In addition to blood seal, women will suffer from low back pain due to bleeding. "Asarum produced in Liaoning is the best. Saffron: reddish in color, the five elements belong to fire, which can promote blood circulation and remove blood stasis. Treat depression, chest tightness and trance. Regulate the ovarian, uterine and pelvic systems to make the whole body qi and blood unobstructed. As can be seen from the name of saffron, it is the top grade produced in Tibet. Hematoxylin: Yellow in color, the five elements belong to soil, which can regulate your uterus, ovary and pelvic system and treat dysmenorrhea and traumatic swelling and pain. Hematoxylin is best produced in Yunnan. Poria cocos: the color is white, and the five elements belong to gold, which can eliminate the turbid gas and moisture in the body and make you feel refreshed and refreshed; It can also strengthen the spleen and eliminate phlegm, resist cancer, calm the mind, promote sleep, and eliminate edema and obesity. Poria cocos produced in Yunnan has the best efficacy. Polygonum multiflorum Thunb: The color is black, and the five elements belong to water, which can replenish your liver and kidney, generate essence and blood, blacken hair, and strengthen bones and muscles; It can also prevent and treat osteoporosis, delay the onset of menopause, regulate the uterus, ovary and pelvic system, resist aging and enhance the body's resistance. Wild Polygonum multiflorum Thunb. It is produced in Henan, Anhui, Hubei and Sichuan with the best efficacy. Guizhou and Jiangsu have the best artificial cultivation effect.