Tixylix is for 6-10 year olds =/
Dear Mysticc,
I'm not a doctor, but, there has been a lot of recent press about cold and cough meds not being effective at all for very young children. The best you could do (in my lay opinion) is to keep an eye on the kids and if they get worse call the pediatrician. Also, it may help to run a (cold ) humidifier. It appears that hot-humid air helps keep viruses from spreading.
Regards,
Phil