Whether "dry, rough skin" term can be considered as a synonym of "dry skin" HP:0000958 or not,
Otherwise, a dry skin implies rough skin too so it can be given as "dry or rough skin"
Peter N. Robinson
I would think that dry, rough skin is really just a description for dry skin (which is also rough). This is not a very precise description, but if you have seen this in a database or paper I think it is fair to use the term "dry skin" HP:0000958