Newborns with muffled voice need to be treated according to the cause. If you are surprised, you can be appropriately soothed; if it is a respiratory infection, it can be treated with medication under the guidance of a doctor. 1. Being frightened: If the newborn is frightened, the baby may cry for a long time, and the voice may be mute, at this time parents should be appropriate to the newborn to pacify. 2. Respiratory tract infection: If it is caused by upper respiratory tract infection, under the guidance of a doctor, as appropriate, anti-infective treatment, commonly used drugs such as amoxicillin granules, etc., at the same time with the nebulizer inhalation to alleviate the symptoms, to help alleviate the phenomenon of mucosal edema in the throat area. As you can see, there are many reasons why a newborn’s voice is muffled, and you need to pay attention to whether the child has other symptoms, in order to consult a doctor in time to clarify the cause of the disease and then treatment.