Only qualified doctors with professional training can prescribe botulinum toxin. Botulinum injection belongs to the category of medical beauty in China, and only medical practitioners can inject it. Doctors who are qualified to inject botulinum toxin usually come from plastic surgery, dermatology, neurology and other majors. These doctors need to complete relevant training courses before injecting botulinum toxin to understand the pharmacological effects, indications, contraindications and side effects of botulinum toxin. In addition, doctors also need to have certain aesthetic literacy and injection skills to ensure that the injection effect reaches the expectation and try to avoid side effects.