I wanted to use Dimetapp too and went to the pharmacy to get it (Charlie was about 13 months old at the time) but they scared me by saying that using it increases the risk of SIDS. I really don't know how much truth is in that, but I've been reluctant to use it since hearing that. We use saline spray (had to use it a lot when he was really little as he was always a bit snuffly) and Euky Bear Rub (similar to Vick's).