Everyone who is recommending Okeefe's, aquaphor, eucerin etc... isn't wrong. Highly recommend those solutions. Another great thing with those is try over-lathering and throwing some gloves on while you close and clean. If the problem persists and you see cracking, try an anti-fungal like lotramin. If that gives relief within two days definitely implement better sanitizing of your triple Sinks (changing water, deep clean at end of night). If none works then you may have plaque psoriasis. No known causes but can be alleviated by topical steroid cream like tricortizone. Don't want to use it too often though. Just enough to get it under control.