Cheilitis

Inflammation of the lip vermilion and adjacent perioral skin, presenting with erythema, fissuring, scaling, and/or crusting.

Causes

• Irritant: Frequent lip-licking, drooling

• Allergic: Cosmetic agents, citrus fruits, spices

• Infection: Herpes, candida

• Nutritional deficiencies: Iron, zinc, B2, B3, B12

• Drugs: Acne retinoids

• Underlying diseases: Diabetes, Crohn's, thyroid disorders

• Extreme weather: Sunburns, cold winds, and low humidity