Preventive injections: onabotulinum toxin A and nerve blocks

Abstract Injection strategies are important for clinicians and families alike to be aware of in the armamentarium of headache prevention. These are often considered when other natural, integrative, and oral medication preventive strategies have not yielded sufficient benefit; when a therapeutic treatment trial of oral medication cannot be tolerated due to side effects or contraindications; or in other specific circumstances including concern for medication interactions or polypharmacy, medical co-morbidities, or patient/family preference.