Lip-licking dermatitis in Child
Characteristically, it presents as erythematous, scaly papules coalescing into circumoral plaques, with secondary crusting and fissures. In darker skin phototypes, hyperpigmentation may be more apparent than erythema. Patients often complain of dryness and burning.
K13.0 – Diseases of lips
402285007 – Lip-licking eczema
Differential Diagnosis & Pitfalls
- Perioral dermatitis typically presents in young women with monomorphous erythematous papules, sometimes with scale, sparing the vermillion, whereas lip-licking dermatitis will involve the vermillion.
- Allergic contact dermatitis may present in a similar fashion. Common triggers in this distribution include toothpaste, dental hygiene products, lip cosmetics, medications, musical instruments, and dental appliances.
- Seborrheic dermatitis is a chronic facial dermatitis that presents with erythema with greasy scale that most commonly involves the eyebrows and nasolabial folds. Perioral distribution is unusual, but possible, and appears hypopigmented in darker skin phototypes.
- Candidiasis may cause or complicate fissuring of the oral commissures.