Chapstick for angular cheilitis: what to know

Angular cheilitis causes soreness, redness, scaling, or splits at one or both corners of the mouth. Moisture from saliva can soften the skin, while rubbing, dry lips, dentures, or a yeast or bacterial infection can keep the area irritated. Ordinary balm can form a barrier and reduce stretching when you speak or eat, but scented or flavoured products may sting or trigger further irritation.

Choose a bland, fragrance-free ointment and apply a thin layer to clean, dry corners. Pat the area dry after eating, avoid licking your lips, and do not share lip products. If the cracks persist, a clinician may check for infection, eczema, oral thrush, denture-related rubbing, or another cause. Treatment can involve an appropriate antifungal, antibacterial, or anti-inflammatory medicine; [Emollient Therapy](/treatments/medical-dermatology/emollient-therapy/) explains barrier care, while [Topical Corticosteroids](/treatments/medical-dermatology/topical-corticosteroids/) should only be used as directed.

Arrange a medical review if the corners are worsening, repeatedly splitting, crusting, bleeding, or not settling with gentle protection. Seek prompt care for spreading redness, marked swelling, pus, fever, or difficulty eating and drinking.

Could yeast, bacteria, eczema, a denture fit issue, or a nutritional problem be contributing? Which product and medicine should I use, and for how long? What should I do if the cracks return?