What should you know about mild angular cheilitis?

The creases at the mouth corners can stay damp from saliva, lip licking, drooling, or dental appliances. Repeated wetting and drying weakens the skin barrier, leading to redness, tenderness, fissures, crusting, or burning when eating. Yeast or bacteria may then contribute, while eczema, contact irritation, nutritional problems, or poorly fitting dentures can make recurrence more likely.

One or both corners may be involved. A clinician can examine the pattern and decide whether a swab, medication review, dental assessment, or testing for another condition is useful. Persistent cracking should not be treated indefinitely with random creams because the cause may need targeted care.

Gently rinse and pat the area dry, then apply a bland protective ointment regularly, especially after eating and before sleep. Avoid licking, picking, fragranced lip products, and spicy or acidic foods if they sting. Clean dentures as directed and mention them at review if the cracks recur.

[Emollient Therapy](/treatments/medical-dermatology/emollient-therapy/) can support the skin barrier. If infection or marked inflammation is suspected, a clinician may prescribe a specific treatment; [Topical Corticosteroids](/treatments/medical-dermatology/topical-corticosteroids/) should be used on the mouth area only as directed, because the wrong product or prolonged use can worsen some infections or irritate thin skin.

Arrange an appointment if the cracks spread, keep returning, fail to improve with gentle barrier care, or become markedly painful. Seek earlier review for pus, extensive crusting, fever, swelling of the face, or sores inside the mouth. A rapidly spreading rash or difficulty swallowing needs urgent medical attention.

Ask what is most likely maintaining the inflammation, whether saliva, dentures, eczema, allergy, yeast, or bacteria may be involved, and how long to use each treatment. Ask how to protect the corners after improvement, whether a medicine or dental issue needs attention, and what recurrence pattern should prompt testing or referral.