Neurontopin is an injection of inflammatory skin extract from rabbits vaccinated with cowpox vaccine and is used to treat painful diseases such as lumbar pain caused by lumbar disc herniation or lumbar muscle strain, as well as neck, shoulder and wrist syndrome caused by joint injuries in the neck, shoulder and wrist, and symptomatic neuralgia. It is also useful for skin diseases such as itching caused by eczema, urticaria or dermatitis, and allergic rhinitis. It can also treat abnormal sensory perception, such as the sequelae of subacute optic neuromyelopathy, often with abnormal sensation, hypersensitivity, and chills in the limbs, which can be improved. The main pharmacological effects are analgesia and improvement of peripheral blood circulation, modulation of the vegetative nerves, antagonism of metabolic reactions, and a certain degree of sedation. It is not recommended for use in children who have no experience with the drug and needs to be used with caution in elderly patients.