Dracaena can be used for antibacterial and other medical functions, and Dracaena has the highest medicinal value. After being infected by Fusarium graminearum var. Fungi such as Dracaena yunnanensis can form plant defensins and produce red resin. This red resin is the traditional important southern medicine in China-Dragon's Blood (Dragon's Blood), and flavonoids are its main components. A large number of studies have shown that these components have obvious antibacterial, antifungal, antioxidant, platelet aggregation inhibition, antithrombotic and fibrinolytic activities. Modern pharmacological research shows that dragon's blood can treat a variety of blood diseases, cardiovascular diseases, ulcers and inflammation, and has certain anti-aging and anti-tumor effects. Although Dracaena has so many medicinal values, it is not suitable for direct administration.