My son now has his first cold of the season. I know that I can not give him over the counter cold remedies because he is 18 months (I don't really want to give them to him anyways). Is there anything natural that I can give him to help? I already use a humidifier and raise the end of his crib (when he actually sleeps in it). I would like ideas to help him sleep since he had a hard time last night and seems to be restless again tonight. Thanks.