My son just turned 6 months weights 20lbs(big boy). I think it has been like almost 2 weeks since he had a runny nose. I was letting it just pass by thinking he had allergies because it started when the weather was getting warmer. But I noticed that some times the runny nose turned green and sometimes yellow. Is there anything over the counter medicine that I can give him or should I just save the trouble and make a Dr. appointment?View Thread