The decoction time usually takes about one hour. Firstly, the medicine is decocted with martial fire, and after the water boils, it is simmered with mild fire, which can make the medicine decocted more thoroughly and well in accordance with the doctor’s original intention, so as to achieve the purpose of curing the disease. The duration of decoction varies depending on the medicine. If the medicine is shellfish or goldstone, such as dragon bones and oysters, which are difficult to decoct and insoluble in water, it should be decocted for a longer period of time so that its active substances can be better diluted out. For flowers, leaves, stems and herbs, the decoction time can be slightly shorter, which will help the active ingredients to precipitate out without the active ingredients being destroyed due to prolonged decoction. Clinical decoction time is best to respect the doctor’s instructions during the prescription process, which is more conducive to the improvement of the condition.