1. Use a casserole, white enamel pot or stainless steel pot for decoction; 2. Pour the herbs into the pot, add water to cover the surface of the herbs, soak for half an hour to an hour, boil the first decoction on high heat, keep it at a slight boil and then decoct on low heat for 20-45 minutes (longer for tonic herbs), pour out about 150-200ml of the liquid, add half of the water for the first decoction, boil on high heat, keep it at a slight boil and then decoct on low heat for 30-60 minutes, pour out about 150-200ml of the liquid. Mix the first decoction and the second decoction and take them in two meals, morning and evening; 3. first decoction: take another small pot and pour the medicine into it, then decoct it for 30 minutes, and then decoct it with other medicines. For example, raw keel bone, raw oyster, purple shellfish, stone cassia, raw gypsum, etc.; 4. Separate decoction: Decoct the drugs in each post together for 3 hours, cool them down and put them in the refrigerator for use, and take the appropriate amount into the boiled soup every day according to the number of Chinese medicine posts. For example, buffalo horn, deer horn slice, etc.; 5. After the next: put the next medicine 3-5 minutes before the first decoction is boiled, and start the decoction after 3-5 minutes. For example: cinnamon, sand, Xu Changqing, almond, etc.; 6. Melting of gum: soak it in yellow wine for 1 hour or longer, the yellow wine can cover the gum block, then put the block into a pot and steam it over water until the block is completely melted into liquid form, cool it and put it into the refrigerator for use. According to the number of Chinese medicine posts, you can take an appropriate amount into the boiled soup every day and take it warm. For example, gum, turtle board gum, deer horn gum.