Baby lying down on the nasal congestion, you can change the baby’s position, or follow the doctor’s instructions to use drugs for treatment. 1. baby lying down with nasal congestion, may be lying down with the nasal mucosa capillary blood flow, resulting in nasal mucosa congestion caused by nasal congestion, this situation by adjusting the baby’s position, such as changing to the side lying position, can improve the symptoms of nasal congestion. 2. If the baby is suffering from allergic rhinitis, upper respiratory tract infections and other diseases caused by nasal congestion, you can use saline nasal drops. When the cold is severe, you can also take oral medication, such as pediatric cold and flu granules, to relieve the symptoms of nasal congestion in babies. If your baby has frequent nasal congestion after lying down, it is recommended that you take your baby to the pediatrician in the hospital to clarify the cause of the nasal congestion and give him/her the appropriate treatment, so that he/she does not have to take any medication on his/her own.