hey guys i got a question. Zoey has like little crusties on the edges of her nose, like its really dry or somthing, but around her nostrils and in the center of her nose its fine, but around the edges, its dry and almost flaking off. When dogs get a dry nose, doesnt it mean they are sick? She seems fine though. I just dont want her to get sick or anything. Anyone know what it can be from? Maybe allergies or somthing ?