Looks like HFM disease but it's unusual for this age. If she doesn't have any other symptoms wait and watch it will disappear on its own own If she's having a fever and a rash intensified - consult a paediatrician

If the baby is active and feeding well No need to worry..this is normal skin variants in newborns called erythema toxicum .

Greetings no need to worry apply Dermocalm lotion for local application three times a day

Should visit nearest pediatrician ..

It’s an unusual site for common kinds of rash presenting in neonates. From the picture it appears the rash is on the soles, limbs are spared. Please check the mouth too if there is any rash. How are the web areas in between the toes? And also the nappy area? Also keep a check for fever, change in feeding Check for presence of similar rash in family members - we need to be ruling out scabies in the family. Hand foot mouth disease is uncommon for the age but you never know if others in the family have it