Keratosis pilaris is a common skin condition that causes small, bumpy, and rough patches on the skin. It is also known as follicular keratosis, lichen pilaris, or chicken skin. While it is not harmful or contagious, it can be unsightly and cause itchiness and dryness. There are many synonyms for keratosis pilaris, but they all refer to the same condition. Other names for keratosis pilaris include lichen spinulosus, keratosis follicularis, and hyperkeratosis pilaris. Regardless of what it is called, treatment for keratosis pilaris involves keeping the skin moisturized and exfoliated, and sometimes prescription creams or medications are necessary.