Decoction method: 1. Before decoction, pour one post of Chinese medicine into a pot with appropriate amount of water and soak for half an hour. The surface of the water should be about 1cm above the surface of the herbs after compaction. 2. For the first decoction, boil the herbs on high heat for about 20 minutes after they are boiled, and then pour the boiled juice into the container. Add an appropriate amount of water to the decoction pot, the same amount as the first time, and the second decoction can be a little shorter. 3. Pour the second boiled juice into a container and mix it together with the first juice. This is the amount of Chinese medicine to be taken in a day.