What should I do for my chicken with diarrhea? I think it is only one chicken that has it. She is about 15 weeks old and has only been in my flock/on my property 2-3 weeks. She has no other signs/symptoms and eats and drinks and acts totally healthy and just like the others. I first noticed about 5 days ago. They had extra treats that day (pasta and oatmeal) and at first thought it might just be because of the food change, but it has continued. I am on day 3 of adding Corid to the water as a precaution because I wasn't sure what else to do and didn't think it could hurt. Any other suggestions would be appreciated. If you think Corid is the best course of action, how long should I continue it? Her droppings are very runny and sometimes mostly water, but of normal color.