Cradle cap: gentle treatment for benign baby flakes

Cradle cap looks alarming — thick, yellowish, greasy scales crusting over your newborn's scalp — but it is one of the most benign skin conditions in infancy. It doesn't itch, it doesn't hurt, and almost every baby who gets it clears up on their own by around 12 months.¹

What it is and why it happens

Cradle cap is the common name for infantile seborrheic dermatitis. It's most visible on the scalp but can spread to the eyebrows, ears, eyelids, and sometimes into skin folds on the neck or armpits.¹

The exact cause isn't fully understood, but the leading explanation involves two overlapping factors:

• Residual maternal hormones passed to the baby before birth stimulate the sebaceous (oil-producing) glands in the skin to overproduce sebum.
• Malassezia, a yeast that lives naturally on skin, thrives in this oily environment and contributes to the scaling and inflammation.²

Cradle cap is not caused by poor hygiene and is not contagious. It typically appears in the first weeks of life and is more common in the first few months. Most cases resolve entirely by 6–12 months without any treatment at all.¹

Gentle treatment at home

Most cradle cap needs nothing more than patience, but if the scales bother you or are thick, gentle treatment at home can help loosen them.

Step 1: Soften the scales. Apply a small amount of mineral oil, baby oil, or coconut oil to the scalp and gently massage it in. Leave it on for 15–30 minutes — or overnight for thicker crusts — to soften the scales before washing.¹

Step 2: Wash with gentle baby shampoo. After the oil has had time to work, wash the scalp with a gentle, unperfumed baby shampoo. Rinse thoroughly — leaving oil or shampoo residue behind can worsen the condition.

Step 3: Use a soft brush or washcloth. While the shampoo is on, use a soft baby brush or a clean soft washcloth to gently lift the loosened scales. Don't scrub.

What not to do: Do not pick or scrape the scales off with your fingernails or anything sharp. Breaking the skin introduces infection risk. If the scales aren't lifting gently, apply more oil and wait longer rather than forcing them.

Washing the scalp 2–3 times per week is usually sufficient. Daily washing is not necessary and can dry out the scalp, which may worsen flaking.

What doesn't work

Cradle cap is sometimes mistaken for dry skin, leading parents to apply thick moisturisers. Seborrheic dermatitis is not dry skin — the scalp is actually producing too much oil — so heavy moisturisers won't help and may make conditions more favourable for Malassezia growth.²

Adult anti-dandruff shampoos (including those containing ketoconazole or selenium sulfide) are not recommended for babies without a GP's direction. Their concentration and formulation are designed for adult skin.

When to see your doctor

Most cradle cap does not require medical attention. See your GP if:

• The rash spreads extensively beyond the scalp — to the face, neck, or body — and seems to be worsening rather than resolving
• The scales crack, weep fluid, or develop a yellow crust that looks infected (signs of secondary bacterial infection)
• There is significant redness, swelling, or warmth around the affected area
• Your baby seems uncomfortable or in pain (cradle cap itself is not painful)
• The condition has not improved at all by 12 months

Your GP may recommend a mild antifungal or low-potency steroid cream if the case is more severe — these are short-term treatments, not long-term solutions.¹

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Also in this cluster: Baby acne and milia · Common newborn rashes

Sources

1. NHS. "Cradle Cap." NHS, 2023. https://www.nhs.uk/conditions/cradle-cap/
2. Victoire A, Magin P, Coughlan J, van Driel ML. "Interventions for infantile seborrhoeic dermatitis (including cradle cap)." Cochrane Database of Systematic Reviews 2019, Issue 3. https://www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD011380.pub2/full