1) Disorder 2) Perleche 3) Upset 1) Perleche 
(from the article `riboflavin`) A dietary lack of riboflavin is characterized by variable symptoms that may include reddening of the lips with cracks at the corners of the mouth ...
Inflammation and cracking of the lips. May occur secondary to a vitamin (C or B-complex) or mineral deficiency. ... (27 Sep 1997) ... 
(ki-lo´sis) fissuring and dry scaling of the vermilion surface of the lips and angles of the mouth, a characteristic of riboflavin deficiency.
Type: Term Pronunciation: kī-lō′sis Definitions: 1. A condition characterized by dry scaling and fissuring of the lips, attributed by some clinicians to riboflavin deficiencies and other nutritional requirements.
Cheilosis is the condition of having swollen, cracked, bright-red lips. It is a common symptom of many nutritional disorders including ariboflavinosis.
[n] - a disorder of the lips marked by scaling and fissures at the corners of the mouth
perleche noun a disorder of the lips marked by scaling and fissures at the corners of the mouth; caused by a deficiency of riboflavin