Reasonable decoction of Chinese medicine soup, can better play the efficacy of medicine, improve the efficacy. Ming Dynasty physician Li Shizhen said: “Where the service soup medicine, although the product is specialized in fine, repair and treatment, such as law, and decoction of the recklessness of the person who makes times, water and fire is bad, the fire is out of order, then the medicine is also no work.” 1, Chinese herbs before cooking: before cooking, cold water can be used to shower the drug 2-3 times, the soil, dust removed. Otherwise affect the efficacy of the medicine. Then add cool water soak for half an hour, the water soak through the drug, is conducive to the active ingredient precipitation. Chinese medicine has “every child must pull out” said. From the seed herbs are not easy to decoct, easy to dissolve the active ingredients after mashing. Hard, large drugs such as ores, roots and stems, should also be knocked into small pieces before decoction. For pollen, pawpaw, psyllium such as easy to float on the surface of the liquid is not easy to decoct, to be wrapped in gauze into the decoction. Colla Corii Asini, antler gelatin, caramelized sugar should be melted and taken separately. 2, containers and water: containers; the ancient cloud: “decoction prohibited copper and iron, appropriate silver tile pot.” Scientific verification: most of the components of traditional Chinese medicine and metal ions can produce chemical reactions, resulting in harmful organic acid salts. In ancient times, casseroles were often used to take its heat evenly and gently. Modern stainless steel, pond porcelain and other containers, also suitable for decoction. Water; ancient people commonly used running water, rainwater, rice water, wine and so on. Today, people often use tap water, cool boiled water or distilled water. The amount of water used is usually more than about 1 inch of the drug. 3, decoction time and fire: Chinese medicine soup has been used straight heating method, the advantage is easy to control the fire and decoction water, and easy to decoct first after the next. Generally, it is appropriate to decoct 2 times for each post, and the two decoctions are mixed well and then taken in separate doses. It takes 15 minutes after boiling for the antidepressants, and 40-50 minutes after boiling for the tonic medicines. The first time (first decoction) of commonly used medicines can be taken 30 minutes after boiling. Strain the liquid and add water to the dregs. If the decoction is made immediately, warm water can be added; if the dregs of the medicine have been cooled and then decocted, cool water can be added. For the second decoction (2 decoctions), add water to reduce the quantity appropriately, 20 minutes after boiling, and filter off the dregs of the medicine. The fire of the decoction can be divided into Wen and Wu. The Compendium of Materia Medica states, “If you serve the medicine in the same way, it will not be ineffective.” General antidote medicine should be quickly decocted with martial fire, 15 minutes after the first decoction is boiled, and 10 minutes after the second decoction is boiled. Common medicines should be decocted on a medium fire for 20-30 minutes after boiling, and the second decoction should be reduced in 20 minutes after boiling. Nourishing medicines should be decocted first on a martial flame and then on a gentle flame, and then kept on a low flame for about 40 minutes after boiling.