When and Where Does Newborn Acne Appear?
Newborn acne typically appears around a baby's cheeks, nose or forehead and happens around 4-6 weeks which is when they start working out the hormones from being in the womb by way of their skin. The baby encounters these hormones from the placenta and then their oil glands become overstimulated causing the acne. Baby acne can also go as far as a baby's chest and back area and appear to be little raised bumps. Another possible reason babies can have acne is from yeast on their skin.
Whatever the case may be as to why your baby might have acne, it is certainly not comparable to the kind of acne we get as teenagers. Its harmless and will clear up on its own around months 3-4 leaving no scarring. There are some things you can do in the meantime such as make sure all of the baby's blankets and sheets are clean, make sure to not wash baby's laundry with anyone else's laundry, use a mild hypoallergenic detergent, gently wash baby every day with a warm/wet washcloth and mild baby soap and do not pinch or squeeze the acne. Avoid putting anything extra on those areas.