Newborn sneezing and coughing may be a normal physiological response, but also may be caused by upper respiratory tract infection, allergic rhinitis. 1. Physiological reaction: newborn sneezing and coughing are the body’s protective respiratory reflex to external stimuli, such as inhaling cold air or irritating odors may produce this phenomenon, if only occasional phenomenon is physiological. 2. Upper respiratory tract infection: due to the relatively poor immune system, newborns are likely to be infected by viruses or bacteria, resulting in upper respiratory tract mucosal congestion and edema, and there will be part of the inflammatory secretion exudate, which causes sneezing and coughing symptoms, which is not a normal pathological condition. 3. Allergic rhinitis: it may be due to the newborn’s contact with allergens caused by the symptoms, resulting in allergic reactions caused by sneezing and coughing symptoms, the newborn needs to be clear and avoid contact with allergens in a timely manner, which belongs to the pathological conditions. Newborns if only occasional sneezing and coughing, and no other discomfort, generally do not need special treatment, if frequent sneezing and coughing or accompanying discomfort need to consult a doctor in a timely manner to clarify the diagnosis, and comply with the doctor’s instructions for targeted treatment, so as not to miss the opportunity for treatment.