What do you think of using the Airborne brand (or similar brands) "cold remedy" herbal supplement as an immunity boooster for sick chickens?? There's a description of the product at http://www.drugstore.com/airborne-effervescent-health-formula-zesty-orange/qxp76905 . I've been taking it & similar ones for years & they've helped me fight colds. I'm considering using a Kroger brand one that also contains probiotics. It's similar to the one at http://www.walgreens.com/store/c/wa...t-effervescent-tablets/ID=prod6000556-product . I am thinking I'd break off a small corner of the tablet & dissolve it in a gallon of drinking water for the chickens.