Hi Rebecca. We are the same way. We have been sick (one or more of us) since August!!
Zicam nasal gel is the best. It has been a HUGE blessing to us. I use the q-tip ones on my 3 and 4 year olds (it says 3+ on the packaging) and I have once used it on my 22 month old, once I see the cold coming on (sneezing, runny nose). It really does keep the cold away or from getting any worse. I started using it a few years ago and have not had a single cold that is in any way close to the 2-week, sniffly, yuckiness I used to have. Good luck!
The Maas Family Story from Southland Christian Church on Vimeo.