Nasal congestion in 4-month-old babies with colds can be relieved by cleaning the nasal passages, applying localized hot compresses and following the doctor’s instructions for anti-infection treatment. It is recommended to seek medical advice as soon as possible, in the doctor’s guidance for symptomatic treatment, to avoid blindly using drugs. 1. Clean nasal cavity: 4 months baby cold nasal congestion, parents can use saline rinse baby nasal cavity, help remove secretions, relieve symptoms. 2. Local hot compresses: Parents can use hot towels to apply hot compresses to both sides of the nose, gently rubbing from top to bottom to promote the discharge of secretions and relieve nasal congestion. 3. Anti-infection treatment: colds are mostly caused by viral infections and have a certain degree of self-healing, if the baby’s above measures continue to be unrelieved, then consider following the doctor’s instructions for oral medication, such as taking pediatric cold granules to relieve symptoms. If there is a bacterial infection, you need to take oral cefixime granules and other treatments. 4 months baby cold nasal congestion, parents are advised to take the baby to the doctor, follow the doctor’s advice standardized treatment.