Some patients complain of botulinum toxin (botox, dysport) for a few days after the application. The reason for this is not known exactly, but its relation with botulinum toxin has not been fully established. It is estimated that there may be personal sensitivity.
Is Botulinum toxin (Botox, dysport) used to treat headaches?
Migraine is a common neurological disorder with recurrent headache. Typical migraine attacks last for 4-72 hours. Chronic migraine (CM) is a severe neurological condition that causes unilateral or bilateral headache. The United States Food and Drug Administration (FDA) approved botulinum toxin (Botox, Dysport) for the prophylactic treatment of CM in 2010. It was observed that it was effective in reducing the frequency and severity of headache in patients with CM. Treatment is well tolerated by patients.