Darier's Disease is a skin condition that is also known as keratosis follicularis. It is a rare genetic disorder that affects the skin by causing dark, raised patches on the skin that may be itchy and painful. Other synonyms for Darier's disease include dyskeratosis follicularis, Keratosis follicularis, and Darier-White disease. The condition is often inherited from one or both parents, and it is usually diagnosed during adolescence or young adulthood. Treatment options for Darier's disease include medications to reduce inflammation, topical creams to improve skin texture, and laser therapy to reduce the appearance of the bumps on the skin.