Well, not exactly. I'm assuming you meant chicken pox and not smallpox. But, that aside, we don't know what the connection is between the Shingrix vaccine and GD. It may not be directly related to the chicken pox virus (although at my worst, I sure looked like I had the worst case of chicken pox ever.) We just don't know. Only that many of us got GD after the vaccine. There could even be the coincidence that our age group is more likely to get the vaccine and GD. Until it's studied, we won't know. There are studies regarding rashes, eczema and atopic dematoses following vaccinations of various sorts. Cause and effect hasn't been established. Perhaps if your dermatologists who do believe there is a causal link would at least publish case studies it might spur more research.