The main ingredient of Kangfu Xin Liquid is American cockroach extract. The indications approved in the instruction are to promote blood circulation and nourish yin to produce muscle. It is used internally for bruised tissues, bleeding stomach pain, gastric and duodenal ulcers, as well as for the adjunctive treatment of yin-deficiency consumption and tuberculosis; externally it is used for golden sores, trauma, ulcers, fistulas, burns, burns and bedsores. As a traditional medicinal insect, American cockroach has a long history of medicinal use and is rich in resources. It contains a variety of glycoproteins and amino acids such as alginose, inositol, phenylalanine and asparagine, which have anti-bacterial, anti-fungal, anti-viral and anti-tumor activities. Modern pharmacological research has found that Rehabin has a regulatory effect on inflammatory mediators such as prostaglandins, interleukin-1 and leukotrienes, and has anti-inflammatory and anti-swelling effects, improving the phagocytosis of macrophages, lymphocytes and serum lysozyme activity, enhancing the immune function of the body, promoting vascular renewal, improving microcirculation of the wound and promoting the growth of granulation tissue.