I used sulmet to treat my hens for coccidiosis. On day 5 of the treatment I had four out of six hens laying around instead of the usual pecking and scratching so i discontinued the treatment for fear of overdose. The last dose was on saturday evening. I am seeing no signs of improvement (they seem to be getting worse). They are laying down for most of the day, combs are losing the bright red color, and one of them is having a hard time walking. Three of the four are eating and drinking well. I have one of them in the house and I am helping her eat and drink. I am giving them plain yogurt. Does anybody have any recommendations for what else I can do?