The relief measures for one-year-old baby with cold and unventilated nose are as follows: 1. After a cold, due to congestion and edema of the nasal mucosa, resulting in narrowing of the respiratory passages, plus the mucus glands under the mucosa will also increase the amount of secreted water and mucus, resulting in increased nasal discharge and unventilated nose, you can put a few drops of saline or breast milk into the nasal cavity, dilute the nasal discharge and suck it out with a nasal aspirator, which can effectively improve the symptoms of nasal congestion. At the same time, it also helps to clear the cold virus in the nasal cavity and shorten the course of the disease. 2, you can give your baby anti-cold medicine under the guidance of the doctor to improve the symptoms of nasal congestion. If the nose is not ventilated caused by wind-cold cold, you can take wind-cold cold granules, Jing Fang Defeat Poison San, etc. If the nose is not ventilated caused by wind-heat cold, you can take pediatric cold and fever punch, Banlangen granules, etc. to improve the symptoms of nasal obstruction.