Chinese medicine decoction for five or six hours, the decoction time is too long, may lead to a decline in the effectiveness of the drug, it is not recommended to continue to drink. According to the different characteristics and types of Chinese medicine, the heat and time of decoction are also different, scientific and reasonable decoction method can maximize the decoction and retain the active ingredients of the drug, to maximize the guarantee to achieve the therapeutic effect, so as to effectively improve the condition. The method of decoction advocates “first military and then civilian”. That is, first use the fire to make the medicine boil as soon as possible to save time, and then continue to decoct with the fire to keep the medicine in a slightly boiling state, so as to avoid overflow of the medicine or boil dry too quickly. The active ingredients are not easy to decoct minerals, bones and horns, crustaceans and tonic drugs, it is appropriate to simmer for a long time, each time to maintain about 1 hour, so that the active ingredients can be fully dissolved. In addition, antidepressants and other medicines containing volatile active ingredients, it is appropriate to use the fire to boil quickly, and then switch to the fire to maintain 10 minutes to 15 minutes. Generally speaking, Chinese herbal medicines should be decocted twice, and the amount of water added to the second decoction should be 1/3 to 1/2 of that of the first decoction, and the decoction of the second decoction should be mixed with the dregs and filtered, and then divided into 2 to 3 doses. It should be noted that the contraindications and adverse reactions of certain Chinese medicines have not yet been clarified, and patients should take them under the guidance of professional physicians. If serious adverse reactions occur, it is necessary to stop taking the medicine and go to the hospital for follow-up.