Been there, done that. Not fun. Plus, it can flare up repeatedly.
BTW, not everyone is a good candidate for the shot. At least they told me that I wouldn’t be. Can’t remember why; it’s been a while.
Pain aside (and THAT is reason enough to get vaccine!) the illness can and does sometimes cause blindness. Patients become reclusive if Shingles spreads to face. Visualize the worst case of acne you've ever saw, times ten!