For me it was a rash on my hands, and I thought it was my dogs leash. It was not until I got the uh blisters that my wife told me what I probably had, and it was too late by then unfortunately. The nerve pain is not worth it. I would have gotten the shot immediately had I known early enough. To make matters worse, I think I went to a family event, and the AC where we were staying had just died, so my itchiness was through the roof in South Florida. Nothing was as awful as the random nerve pain though, I cannot imagine being 50+ and getting the nerve pain.