Myth: "Baby powder is good for nappy rash"

The myth

Talcum or baby powder is often used to "dry" nappy rash.

The facts: how it really works

Powder absorbs moisture briefly but clumps in skin folds and can trap irritants. Babies can inhale fine powder, which can harm the lungs. Barrier creams create a protective layer between skin and urine/stool.

Why it matters on darker skin

Irritated skin in darker babies may look dark rather than red.

Where the myth comes from

Powders were marketed for babies for decades.

What actually helps — and why

Frequent nappy changes: less contact. Expected timeline: 1–3 days. Zinc oxide or petrolatum barrier cream: protects. Expected timeline: each change.

More detail

Baby powder has been used for generations to keep the nappy area 'dry', but it does not form a protective barrier and can cake in skin folds, where it traps moisture and irritants. Fine powder clouds can be breathed in by babies, and inhaling talc has been linked to lung problems; this is the main reason paediatric bodies advise against using it. Some talc products have also been the subject of concerns about contamination with asbestos, leading certain manufacturers to switch to cornstarch or stop selling talc-based baby powder. Cornstarch powders are less of an inhalation concern but can encourage yeast in a broken-down rash. The approach with the best evidence is simple: change wet or soiled nappies promptly, clean gently with water or fragrance-free wipes, allow some nappy-free time, and apply a thick layer of zinc oxide or petrolatum barrier cream at each change.

What to avoid and why

Avoid powders near the baby's face.

Common mistakes

• Scrubbing with wipes.

Caring for children's skin

Children's skin is thinner, loses water faster and absorbs more of what is applied to it relative to body size, so simpler is safer. For most children a short lukewarm bath, a fragrance-free soap substitute and a plain emollient are all that is needed, plus shade, clothing and sunscreen from six months of age. Avoid adult products, essential oils, antiseptics in bath water, bleaching or 'toning' creams, and cosmetic treatments such as relaxers and gel nails. Medicines and medicated creams should be used only as a doctor, nurse or pharmacist advises, and in children Melanin & Me does not offer photo checks: a clinician should see the child. Trust your instincts as a parent: a child who is unusually sleepy, floppy, not feeding, breathing fast or has a rash that does not fade when pressed with a glass needs urgent care. Keep a simple record — photos and dates — of rashes that come and go, as this helps the doctor.

Products, medicines and when to worry

When choosing products for children, look for fragrance-free formulas with short ingredient lists, and avoid adult acne, anti-ageing or lightening products, essential oils and talc. Medicated creams — including steroid creams, antifungals and antibiotics — are safe and helpful when prescribed for the right condition and used for the right length of time, but mixed creams sold over the counter can contain strong steroids that are unsafe for children. Sunscreen is suitable from six months of age; younger babies should be kept in the shade and covered. Do not give medicines intended for adults, and ask a pharmacist about the right medicine for a child's age and weight. Seek urgent care for any rash with fever and a very unwell child, a rash that does not fade under a glass, swelling of the face or lips, or blistering of the mouth or eyes.

Questions to ask your doctor or pharmacist

Useful questions include: What do you think is causing this? Is it likely to come back, and how can I prevent it? Which products should I stop? How long before I should expect improvement, and when should I come back if it isn't better? Are there side effects to watch for? Is this treatment safe if I am pregnant, breastfeeding or for my child? Writing your questions down, bringing your products (or photos of their labels) and taking dated photos of the problem make an appointment much more useful.