I looked up the side effects for the shingles shows.
Not pretty. There’s a lot of buyers remorse among those who took it.
Shingles is treatable with anti-virals of some kind if taken within 24-48 hours of starting symptoms. IOW, if you think you have it, get to a dr, urgent care clinic, or ER immediately.
I think Acyclovar (sp) is the anti viral