You can also post in the Pediatrics Forum as well.
my son is 5 and had the same thing now it could be a very minor allergic reaction my son was allergic to the sunscreen i put on him so don't worry but if they do not go away see your doctor in 2 days
It could be a heat rash. Babies tend to get it during the summer months. Both of my kids did too... Otherwise you could have it looked at, It could also be rosacia. You can use cortizone cream on it.