Atopic cheilitis on the lips

The lip surface or the skin around the mouth may look dry, rough, red or darker than its usual tone. Small splits can sting when eating, drinking or opening the mouth. People with atopic cheilitis may also have eczema elsewhere, but inflamed lips can have other causes, including contact allergy, habitual licking, infection and reactions to cosmetics or dental products.

A clinician considers where the rash sits and what touches the area. Toothpaste flavourings, fragranced balms, lipstick, saliva and spicy or acidic foods can aggravate an impaired lip barrier without being the underlying cause.

Use a plain, fragrance-free ointment regularly and after eating, and resist licking or picking at scale. Pause newly introduced lip products and avoid sharing balms. Rinse away irritating toothpaste residue gently rather than scrubbing. If inflammation persists, a clinician may prescribe a suitable anti-inflammatory medicine for the delicate lip area; use the specified amount and duration because facial skin absorbs treatment readily.

Arrange an assessment if the problem keeps returning, extends beyond the lips, or fails to settle with simple barrier care. Seek prompt care for rapidly increasing swelling, spreading redness, pus, honey-coloured crust, fever or painful grouped blisters. Sudden lip or tongue swelling with breathing or swallowing difficulty is an emergency and requires immediate help.

Ask whether the pattern fits atopic cheilitis or suggests allergic contact cheilitis, and bring the products used on your lips, face and teeth. Discuss whether patch testing is appropriate and which moisturiser or prescription treatment is safe for the exact affected area.