I started Botox Oct.25 and have had a severe migraine ever since. He told me it would take 7 to 10 days to be able to tell a difference. But I can tell you now if this is how I'm going to feel for the first 7 to 10 days with severe migraines after the Botox I don't believe I will redo them in January. Any advice would be greatly appreciated... Thanks for listening..