I have a few sick chickens (respiratory stuff) and have given them every kind of antibiotic I can think of. I've given them terramycin eye ointment, tylan injections and duramycin in their water. They seem to be doing much better, so I thought I would try to worm them. I'm just wondering if I buy garlic cloves, do I just crush them and put them in the drinking water? Also, how many cloves per gallon of water? Thanks.