16 years post-op reduction with free nipple graft and my areolas get extremely dry and flaky. Any clues what this could be?

ever since I had my reduction, which was nearly 16 years ago, periodically, my areolas will get extremely dry and flaky. This has happened more than one time. I have pretty severe eczema, as well, though sometimes the areola dryness occurs absent an eczema flare. But when I'm mid-flare, the areola dryness/flakiness almost always co-occurs. But during this current flare, my areola skin seems to just be breaking down. They ooze serum, and are crusty in general. Any clues what this could be?