How do you counsel patients to reduce post-procedure side effects with onabotulinumtoxinA (Botox) for chronic migraine?  

When I use onabotulinumtoxinA for chronic migraine prevention, I apply it according to the standard 31-injection schedule in the forehead, temples, back of the head, back of the neck, and shoulders. I use tiny needles and inject slowly, especially in the forehead, to make the injections as easy to t...