I love homemade chicken soup, too and hot tea. But I also love to make homemade tomato soup and drink OJ - both have lots of vitamin C.
Easy tomato soup:
12 ripe tomatoes - cut up, fresh is best
2 cloves garlic minced
1 bunch basil (5-6 leaves) finely minced
1 Tbsp olive oil
place all ingredients in crockpot for 10 (or so) hours. In batches, puree in blender until smooth. Strain to catch any seeds. Serve hot, and freeze any leftovers.