I have a hen who is 6 months old, came down with diarreha, is lethargic and warm to touch. Decided it was cocciosis after talking to local feed store, been treating flock for 3 days now, 2 were affected. One is better, the original one who started does not seem to be getting any better. Her crop seems swollen, I have now put in in isolation. Any other suggestions? They say 5 day treatment, however she doesn't seem to be getting any better.