Botox injections are shots that use a toxin to prevent a muscle from moving for a limited time. These shots are often used to smooth wrinkles on the face. Botox shots also may help prevent migraine.
Botox injections usually begin working 1 to 3 days after treatment, though it can take a week or more to see full results. Not all people have visible results or relief from symptoms.
Depending on the problem being treated, the effect may last 3 to 4 months. To maintain the effect, you'll likely need regular follow-up injections spaced at least three months apart.
As a rule, health care providers don't recommend Botox if you're pregnant or breastfeeding.