J.H.
I have a 4.5 month old that has been battling the stuffy nose/cough thing for a month or so. When its at its worst we let him sleep buckled into a vibrating chair in his crib so he was elevated the entire night. We also used a HOT vapor humidifier. Because we don't do the medication thing I took the cold/flu aromatherapy blend from California kids (Whole Foods or Wild Oats) and put that in the top of the vaporizer. Gave him a bath in water with the same oil added and mixed the oil with sweet almond oil to rub on his chest and face. I found that this worked pretty well. I have also used Eucalyptus oil and a small amount of tea tree oil.