Botox works wonders for most people.
Botox for me on the other hand took a year to notice any relief and it lasted for about a year which included injections every 3 months.
My migraine is 24/7 and caused from damage from radiation treatments to my neck.
My NP decided to inject some of the Botox into my neck and that brought relief for a couple months.
You should give the Botox a try but it can take up to a year to notice results so be patient.
Vision; yes my vision is sometimes blurry during a 10 pain day. My pain ranges from 7-10 on a 24 hour basis.
Wishing you the best
Jody