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Cheilosis (Angular Cheilitis): Causes, Treatment, and Prevention

Cheilosis (angular cheilitis) = inflammatory cracking, redness, soreness at the mouth corners.

Common Causes

  • Nutritional deficiencies: Iron, zinc, B vitamins (B2 riboflavin, B3 niacin, B6, B12, folate)
  • Dehydration
  • Environmental: Cold, dry, windy weather
  • Infection: Candida (yeast), Staphylococcus aureus, or mixed
  • Mechanical: Ill-fitting dentures, deep nasolabial folds, lip licking
  • Systemic: Diabetes, IBD, immunosuppression

Treatment

  • Correct deficiencies (diet/supplements)
  • Hydrate adequately
  • Topical antifungals (nystatin, clotrimazole) ± mild steroid if inflammatory
  • Antibacterials if bacterial superinfection
  • Barrier ointment (petrolatum, lanolin)
  • Address dental/orthodontic factors

Prevention

  • Balanced diet rich in fruits, vegetables, whole grains
  • Sufficient water intake
  • Lip balm with SPF in harsh weather
  • Treat underlying conditions
  • Avoid chronic lip licking

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