The correct way to decoct the medicine is to soak it first, decoct it in water 2 times, mix the liquid from the 2 times and divide it into 2 parts. You should consult your doctor for details. 1. Soaking, usually soak the herbs for about 45 minutes first. 2. Decocting, first boil on high heat, after that change to low heat, and then decoct for about 30 minutes, after that pour out the decoction, which is the first decoction. Then add water again, the second decoction, the time is about 20 minutes. When the decoction is finished, pour out the liquid. 3. Mix, mix the two decoctions and divide into 2 parts. If there are herbs decocted first, they need to be soaked for about 30 minutes, then boiled on high heat and decocted on low heat for another 30 minutes or so, after which the rest of the herbs should be decocted according to the former method. The herbs under the latter need to be added after the remaining herbs have been decocted and boiled, and then wait for 10-20 minutes. Herbs in packet decoction need to be wrapped in gauze before decocting with other herbs. It is recommended to decoct the herbs under the supervision of a doctor or have them decocted by a pharmacy.