GARLIC-We ike to eat "garlic pops" (oiled and heated garlic bulbs), but recently my friend gave me a quart of pickled/fermented garlic & it works very well
PURE ESSENTIAL OILS- Eucalyptus mixed with some carrier oil or even vaseline on the chest, back & under nose. Peppermint oil also helps open up passages and enourages deep breathing
VITAMIN C-Oranges/Juice & definately Rose Hips (in a syrup or an infused honey)
GINGER DROPS-This is one of my favorites! Super easy to make and very appealling to the children---Here's my older post about how to make them: http://www.joyfuljunction.com/1/post/2010/07/boosting-our-immune-system.html