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Drool Dermatitis

John Montgomery4 min read

Drool Dermatitis

Drool dermatitis (drool rash, dribble rash, or lip-licker’s dermatitis in older children) is an irritant contact dermatitis caused by saliva sitting on the skin around the mouth, chin, cheeks and neck folds. Tam & Yu (2022) list “perioral dermatitis from saliva” with nappy dermatitis and hand dermatitis from washing as the typical irritant dermatitis of childhood. Saliva keeps the skin repeatedly wet and then dry. This macerates and breaks down the outer barrier, and the digestive enzymes in saliva add to the irritation (Children’s Mercy 2024). Salivary glands become active at 2–3 months, so drooling and drool rash often start before any teeth appear. Teething, dummies, food smeared on the face and constant wiping all add to it (Healthline). The British Association of Dermatologists lists teething among baby eczema triggers, most likely because of the drool.

Drool Dermatitis [relates] Environmental Triggers Drool Dermatitis [worsens] Skin Barrier Dysfunction

Overlap with atopic eczema. In a toddler with Atopic Dermatitis, saliva is a strong local trigger. The cheeks and chin are already a typical site for early-childhood eczema, and a skin barrier low in Filaggrin breaks down faster when kept wet. Drool rash usually looks like flat or slightly raised red, chapped, scaly patches. In lip-lickers it covers exactly the area the tongue can reach (Children’s Mercy). It must be told apart from Perioral Dermatitis, a papular rash of the skin around the mouth, nose and eyes that is often caused by facial, inhaled or oral steroids. A trial of Topical Corticosteroids helps irritant drool rash but makes perioral dermatitis worse. Other things that can look similar are Allergic Contact Dermatitis to lip balms or ointments, yeast infection, and Impetigo.

Drool Dermatitis [relates] Perioral Dermatitis Drool Dermatitis [worsens] Atopic Dermatitis

Management. Treatment rests on keeping the skin dry and putting a barrier in place, mostly on consensus. Pat saliva away gently rather than rubbing. Use bibs and change them as soon as they are wet. Rinse with lukewarm water rather than using baby wipes. Apply a thin layer of a greasy barrier ointment, such as plain petroleum jelly (Mineral Oil-type paraffin), before meals, naps and bed so that saliva and food do not reach the skin (Healthline). Thin lotions are less useful on an active drool rash. A short course of mild Hydrocortisone can be used for an inflamed patch, but only after asking a doctor. No randomised trials of drool-rash treatments were found, so the evidence level is weak. The irritant mechanism itself is well established.

Mineral Oil [prevents] Drool Dermatitis Hydrocortisone [treats] Drool Dermatitis

Lanolin and "natural" balms on a toddler's chin

Many baby barrier ointments and nipple creams contain Lanolin, which sensitises 1.2–6.2% of patch-tested children and is more often positive in children with eczema (Tam & Yu 2022). Plant-oil or essential-oil balms on broken skin around the mouth can also cause contact allergy and may be swallowed. If a chin rash gets worse with an ointment, suspect Allergic Contact Dermatitis and switch to plain white soft paraffin.

What parents report (evidence: anecdotal). In a r/toddlertips thread about a recurring chin-and-cheek rash, parents describe petroleum-jelly or healing-ointment barriers applied before acidic foods and at bedtime. They also say the rash often did not clear until teething was over. One parent reports a paediatrician blaming lanolin in a popular ointment for a reaction. Several “drool rashes” that would not resolve turned out to be perioral dermatitis, managed by a dermatologist with Pimecrolimus, or yeast that needed antifungal cream and keeping the skin dry. Parents also mention the frustration of trying many products without success.

Lanolin [worsens] Drool Dermatitis Pimecrolimus [treats] Perioral Dermatitis

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