50 days baby nasal congestion is usually considered as upper respiratory tract infection or nasal secretion blockage, because 50 days baby nasal mucosa is very delicate and easily damaged, so we should be especially careful, specific treatment above to pay attention to do the following points: First, you can use a small flashlight to look carefully whether the nasal cavity is blocked by boogers, if there is a booger blockage can gently pinch the outside of the nostril, boogers may fall off by themselves. If you don’t see it fall off on its own, you can also use a small cotton swab with some warm water to gently reach inside the nasal cavity to soften the boogers and remove them. Secondly, if the nasal congestion is serious and there are more nasal stools, you can buy saline nasal spray to clean the nasal secretions. Third, if there are other symptoms, such as cough, fever, etc., usually also need antiviral treatment, you can take oral antiviral oral solution, you can also use ultrasonic nebulization or pump nebulization treatment treatment.