What are the side effects of Botox for migraines?
However, there are some side effects of Botox injections for migraine, including neck stiffness and muscle weakness. Other side effects are less common but can occur.Common side effects of Botox for migraine include:
redness, soreness, or swelling at the injection site.
bruising.
chills.
fatigue.
dry mouth.
neck stiffness.