A month of that!
Anyone who hasn't had the Shingles vaxx, this is your warning!
I had it about two years ago (the vaccine, not Shingles), and it was a bit of trouble: I had the shots at the Target Pharmacy. They don't always keep it in stock, so they might have to order it for you. It's a two-part vaccine: you take one shot, then you take the second one two months later -- so plan carefully! But that's a whole lot less trouble than having Shingles!
Yes, my 20-something co-worker had Shingles up her back and under her hair -- she was terrified it'd move into her eye. I was afraid for her. That sounds horrible.
For life!
Again, if you're not vaxxed, why are you waiting?
I never heard that someone with Shingles could transmit Chickenpox to someone without immunity; however, after reading that it requires direct contact with the rash, I'm not so worried -- who goes around rubbing themselves on someone else's rash?