My baby is 7 months old.. Her lower lip has grey color at the middle.. For a 2 days.. Do anything to concern

A. Hi See maybe that is dry missed you to drive as it may be looking like that so you can apply any of Vaseline petroleum jelly or something over there save the portion is going to be hydrated the skin is going to feel of it that’s going to be better that way that is going to retain its original colour after that