You will know within a couple days if the corid is working. Another possibility is worms but that I don’t know much about. You’ve already done the easiest and most likely thing so try to go easy on yourself. If things aren’t looking up tomorrow there is another possibility that comes to mind—you said the one hen was chugging water? Have you been giving them lots of electrolytes or just plain water?Two more now looking sick and arched over like this. Nostrils aren’t inflamed. I don’t know how to figure out what they have. I’ve been a mess all day![]()