Hello. I have a lip disorder called exfoliative cheilitis or factitious cheilitis. I got it by excessively licking, biting, and picking at my lips, which results in the top layer of skin being removed permanently. Unfortunately, when you leave your lips alone, they don't heal normally. Rather, they form scales or crusts that grow and they shed every few days, similar to psoriasis.
Although there is no official cure for this condition, I am tying to heal myself right now.