I have an AF which has been making my life a misery for 2 years. The doc advised that I need to try botox next as none of the creams are working

I think its quite high up inside me and therefore Im not sure the cream reaches the issue. That's my feeling.
I just wondered- those who have had the botox...what does it involve and whats the recovery like?
He said he wants to put my under general anaesthetic to do it which is really scary as ive not had it before. But he said that way he can 'clean out' above it as there may be some kind of sediment above it or soemthing. Has anyone else had this said to them??
Thanks so much
At my wit's end
