You raise a good point, oh i know it can be a very nasty and painful condition, that's for sure, i was just surprised his wasn't, it was itchy ,very and uncomfortable, but that was all, thank goodness, you have my sympathy Mary, i have read how awful it can be, infact an elderly friend of ours, got it in his eye, it had to be stitched closed, he later died, and the shingles at his elderly age contributed to his death,it was just one more thing he did not need.,so yes it is horrible and can have serious implications,so if a vaccine is available would be a good thing indeed.