Dried cockroach extract is used to nourish yin and promote muscle growth as well as to stimulate the blood circulation, it can be used as internal medicine as well as external medicine. 1. Internal use: It can be used for various symptoms caused by blood stasis and obstruction, including gastric pain and bleeding, gastroduodenal ulcers, etc. It can also be used as an adjunctive treatment for yin deficiency and consumption. In the treatment of gastric ulcer caused by Helicobacter pylori infection, it needs to be combined with rabeprazole and amoxicillin treatment. 2. Topical application: local external application can be used for the treatment of bruises, ulcers, burns, scalds, bedsores and other wound repair, the specific method can be externally rubbed, but also through the local wet compress. The adverse reactions and contraindications of this drug are not clear, if you need to use the drug, it is recommended to go to the hospital under the guidance of a professional physician to use the drug treatment.