my baby boy is 3 month 25 days old but since birth he has cracked lips and it's like lip blister, I applied breastmilk but it's not going

A. You can apply antiseptic cream that would be a better option if anything is within the mouth of your child is that is bothering like you can check with your doctor and breastmilk is not a medicine so just don’t use it for everything please check with your