You can expect a significant decrease in migraine pain following your migraine surgery. Depending on your migraine trigger sites, you may notice improvement immediately. However, it takes some patients weeks or months until the full effect is felt. The majority of patients notice improvement two to four weeks.
Although uncommon, there is a chance your migraines will not significantly improve. This is usually related to additional trigger sites that are now noticeable after the removable of the primary sites, and can usually be treated with an additional procedure. It is very rare for there to be no improvement after surgery.