The correct way to decoct Chinese medicine first Decoction of shells and minerals, because of the hard texture, the active ingredients should not be decocted, should be broken first decoction, decoction 10-30 minutes before other drugs, such as dragon bones, oysters, etc.. In addition, the toxicity of drugs such as sapodilla, wolfsbane, etc., should be decocted slowly for a long time to reduce toxicity. The shells and minerals are hard and the active ingredients should not be decocted, so they should be broken and decocted for 10-30 minutes before other drugs, such as dragon bones and oysters. In addition, the poisonous drugs such as sapodilla and wolfsbane should be decocted for a long time with slow fire to reduce toxicity. For herbs with volatile components or aromatic odor, a long decoction can easily destroy the active ingredients, so it is better to put them in when the general drug is about to be cooked, and decoct for 4-5 minutes to prevent the active ingredients from dispersing, such as peppermint and sand. To prevent turbidity of the liquid after decoction and to reduce irritation to the digestive tract and throat, the medicine should be wrapped in a thin cloth and then put into the pot with other medicines, such as Fritillaria, Psyllium, etc. For valuable herbs, in order to reduce their loss, they should be decocted alone, and then combined with the decoction of other herbs, such as ginseng and antler, after taking the juice.