How to decoct traditional Chinese medicine

At present, medicinal materials are usually soaked for 1-2 hours and then decocted. Decocting exterior-relieving drugs containing volatile components with strong fire for 3-5 minutes. Tonics, minerals and poisons are boiled with slow fire for more than 30 minutes. Among them, minerals and toxic substances should be fried first. Individual drugs containing volatile components should be "after", that is, after other drugs are cooked, such drugs should be added, and the boiling time should not exceed 3 minutes. There should be more drugs to exorcise evil spirits and less nourishing juice. Decocting exterior-relieving drugs for two times at most and tonic drugs for more than three times at most. Other drugs are generally decocted twice.