On Sunday I noticed that Nelly my 7 mo old BO was lethargic. I'd seen this with the other 7 mo old BO, Beatrice (they're sisters), isolated her, fed yogurt overnight and she perked up the next day. Back to the run she went and has been fine ever since expect she's not laying. So, I isolated Nelly Sunday afternoon, fed her as much yogurt as she would allow and waited. I did research coming to the conclusion that both girls had an e-coli overgrowth so last night after work I bought some Duramycan-10 (sp?) recommended by staff at farm store. I gave some to Nelly. Prior to giving her the antibiotics I noticed that she was struggling to breath (breathing with mouth open), shaking her head and swallowing like she had something stuck in her throat. She also has balance problems and rarely opens her eyes, even when I talk to her. So now, I'm thinking Gape Worm. I did not treat Beatrice or her flock mate Callista with the antibiotics as I thought now that these new symptoms are showing with Nelly, antibiotics may not be necessary for them. In all my research I was unaware that you should worm your chickens - I feel silly about that. So today after work, back to the feed store I go for some wormer. My questions: 1. Does anyone have experience successfully treating gape worm? 2. Is it a death sentence for Nelly? 3. Is there anything I can do from the "outside" to help her be more comfortable? (ie - maybe pull the worms out of her mouth somehow - I can't see anything but I haven't physically opened her mouth either. It's open a bit so she can breathe. 4. What kind of wormer will work - well and FAST! 5. What precautions do I need to take in the coop and run? Run is sand and coop is pine shavings. I clean coop once a week and haven't cleaned run for about a month. I understand Nelly may be past the point of saving but I still need to worm the other two. Any help would be greatly appreciated. I HATE to see animals suffer and will put her out of her misery if its best for her but if there's something I can do (last ditch effort) I will.