The specific causes of sneezing and yellow nose in babies are as follows: a. When babies have a cold, i.e. upper respiratory tract infection, they will sneeze and have a yellow nose, so they can be treated with oral antiviral drugs and cold medication. Second, due to allergy symptoms in children, such as allergy to hot and cold air or when eating allergic food, or contact with allergic dust or pollen, children will also sneeze and runny nose, need to apply anti-allergy drugs for treatment, if necessary, with nebulized inhalation and other ways to relieve the child’s symptoms. Third, due to rhinitis, children often suffer from rhinitis or sinusitis in autumn and winter due to the late stage of cold, children will have sneezing and yellow nasal discharge, the symptom of oral treatment of rhinitis, such as rhinitis tablets or nasal abyss and orifice granules, etc., the child’s symptoms will improve or disappear after rhinitis is cured.