I had never heard of Darier's Disease either until my biopsy came back as that. I was very worried since it's genetic and I have two boys that I worry would then get it as well. Then I started to research it more and I was sure that it was not what I had. Since Grovers and Dariers can resemble eachother, they are often misdiagnosed as one or the other. I am going to do the genetic test to confirm so that I can either know my boys may get it or not. If it is in fact Grovers, then I'm going on a year now that I have been dealing with it. Darier's usually does not flare up and last that long. My moms side of the family in the women have been predisposed to have a lot of liver spots (sun spots) and so I expected I would inherit that which I do have on my upper thighs, tops of my hands, and on my collarbone area but never did they look like a rash or itch. My sister does have a slight rash on her chest/neck area every now and then but it goes away in a few days...mine has not.