Hard time tapering from Fioricet

[Basia_]

I've had chronic migraines for 39 years.  I've tried every medication out there.  All triptans, Aimovig, Emgality, Ajovy, Trokendi, Topamax, Ubrelvy, Nurtec, Advil doesn't work, icing my head doesn't work, a hot shower doesn't work.  You name it, I've done it.  Pressure points don't work.  I've been taking Fioricet daily for probably 6 months.  Started innocently of course.  I understand the Fioricet is causing my daily migraines and I need to taper off.  I get Botox for migraines (4 rounds so far) which should be working and probably truly is but because I take so much Fioricet, I get awful migraines every single day.  I wanted to start a taper plan this week but the migraines are so bad I wasn't able to stick with just 4 per day (then taper from there).  Any advice/help would be appreciated.  What do/did you use in between the Fioricet?  I have extra strength Excedrin which I know is basically the same thing without the barbiturate.