Buy several packs of Cold-EEZE! They're these hard candies (more or less) that you suck and don't chew. My dad has been buying them, and I've been sucking them down, and I feel so much better! You can find them at like Fred Myers and... well just about everywhere. They cost like 5 1/2 dollars, but trust me it's worth it.
(btw they come in various flavors)