There is no clear rule on how long Four Substance Soup should be boiled, clinically it is recommended to boil it and then cook it on low heat for about 30~40 minutes, depending on the doctor’s advice. Four Substance Soup is composed of Angelica sinensis, Rhizoma Ligustici Chuanxiong, Radix Rehmanniae Praeparata and Radix Paeoniae Alba. It has the effect of tonifying and invigorating blood, and is used for signs of deficiency and stagnation of Ying and Blood (deficiency of blood in the body), manifesting as a lack of color, insomnia, palpitations (rapid heartbeat, often accompanied by panic), dizziness and dizziness, and irregular menstruation in women, with scanty menstruation or amenorrhea. The decoction of Si Wu Tang is not clearly documented in the literature for a specific period of time, and is generally used in clinical practice after the drug is boiled, the tonic drugs are then given a small fire to cook for 30~40 minutes, so that the active ingredients of the drug are fully analyzed. The contraindications and adverse effects of Si Wu Tang are not clear, and the drug should be used under the guidance of a doctor’s diagnosis.