What to do about colds and stuffy noses in babies Colds and stuffy noses are very common symptoms for newborns and babies, which can make parents very anxious, especially first-time parents who may not know how to respond. This situation. Therefore, in the following article, we will introduce how to deal with cold and stuffy nose in babies from several aspects. In terms of feeding, for babies under six months old, their main source of nutrition is breast milk or infant formula, which requires attention to dietary hygiene.