Cold, cough and nasal congestion in a four month old baby can be relieved by general treatment and medication. Cold, cough and nasal congestion in four-month-old babies are mostly due to viral infections, resulting in cough and nasal congestion in babies. If your baby is in good spirits and eating well, you don’t need to use special medication, clean up your baby’s nasal secretions in time and keep him warm. If the symptoms are more serious, you can follow the doctor’s advice to the baby to be medication, such as pediatric cold Ning particles. Four months baby cold cough nasal congestion such as a long time does not relieve, it is recommended to consult a doctor in time to avoid delaying the condition, follow the doctor’s instructions to use drugs, avoid self-medication.