White pimples on a newborn

Milia are tiny white or yellow-white bumps, often on the nose, cheeks, or chin, caused by trapped skin protein near the surface. They are not the same as adult acne and are not caused by poor hygiene. Heat rash may look more red and prickly, while infection can cause spreading redness, warmth, swelling, drainage, or blisters. Newborn skin can change quickly, so the baby’s general condition is as meaningful as the appearance.

Wash with plain lukewarm water or a mild fragrance-free cleanser, then pat dry. Keep the baby cool and change damp clothing. Do not pop, scrape, exfoliate, or apply adult acne medicines, essential oils, or steroid creams unless a clinician prescribed them. Avoid thick ointments on the affected area unless recommended. Take a clear photograph if the appearance changes, and mention any new product, detergent, or medicine to the baby’s clinician.

Contact a clinician promptly if a newborn has a measured fever, is difficult to wake, feeds poorly, has fewer wet nappies, or seems unusually unwell. Seek urgent care for breathing difficulty, rapidly spreading redness, purple or blistering lesions, marked swelling, pus, or sores near the eyes. Even without these signs, ask for an examination if the bumps are spreading or you are unsure they are milia.

Do these bumps look like milia or heat rash? Which cleanser and moisturiser are suitable? What temperature, feeding, colour, or behaviour changes should prompt urgent review?