Dry skin (tmi)

Okay so out of no where I started to notice my nipples were very itchy. And when I felt them they felt almost rough-ish because I realized there's dry skin on it. Now even though it doesn't cause me any pain sometimes it just gets super super itchy and I peel off the dry skin and its fine but then a few days later it starts again and idk what it is or what to do about it!