I have 2 hens that have had sick problems for a long time now. They started out when they first got sick just laying around,not even able to walk. I thought worms even tho I never saw any. I got worm meds and injected and orally gave them meds. Saw improvement right away. But they are both still real bloated. And it has been months and each has had multiple treatings. I use Valbazen and Ivermectin injectable. I know egfg bound is not good but don't they die pretty fast? That is where I am confused. These are 3 yr old RIR hens. And my buds.