M.C.
Cold medicine is not recommended for young children, especially infants due to serious risks. The best thing is to suction the baby's nose as often as you can and use a baby saline spray to help thin the secretions. Also, a humidifier in the baby's room when he sleeps helps him to breathe. You can also put a rolled towel under the mattress to raise it up so he's not laying flat. Hope this helps!