Very, just the hormones you transferred baby during delivery. Should be gone by 3 months old or sooner my pediatrician told me. Also someone said to use breast milk on the acne to help clear up and its working for me!
My baby's got it too. I thought it could have been caused by Breast milk, as I had a few on my breasts for a few days but not sure if that or hormonal. All I know is its normal and common and will eventually go away
Re: Baby acne