Sanwu Huangqin Decoction, from "Preparation for Emergency Qianjin Essential Prescriptions·Volume 3". In the Song Dynasty, Lin Yi and other sages have been used as supplementary prescriptions for women’s postpartum diseases in "The Synopsis of the Golden Chamber". The prescription is composed of 3 herbs: Scutellaria baicalensis Georgi, Sophora flavescens and Dried Rehmannia glutinosa. The effect is to clear away heat and relieve fire, dry dampness and cool blood. Among them, Scutellaria baicalensis Georgi is a noble medicine, which is good for clearing damp and heat, and it can also clear blood heat and deficiency heat. It is a noble medicine with one medicine and three uses. Sophora flavescens for clearing away heat and dampness, dry ground yellow, cooling blood, nourishing yin and detoxification, are both ministerial medicine.
The main pathogenesis of rectal cancer is damp-heat betting, and as the disease progresses, damp-heat, blood-heat, and deficiency-heat are often seen at the same time, which affect each other and are difficult to distinguish. The medicine for clearing heat and dampness is more likely to hurt the yin, but it is not conducive to the disappearance of the heat of yin deficiency. The stickiness of nourishing yin and clearing away heat is not conducive to the removal of damp heat. Therefore, Sanwu Huangqin Decoction is a representative prescription for rectal cancer. It has been clinically used for many years and the effect is reliable.