I treated my whole flock last summer with wazine followed by ivermectin after finding roundworms in their poop. I found some more yesterday and am wondering if I should treat again. Correct me if I'm wrong but I thought if you were seeing them in the poop then the bird had them pretty bad. Is this right? Another thing, I was under the impression that once the medicine killed the worms the chicken would expel them and you would see a large amount of dead worms in the poop. I use sand in the coop and I scoop it every morning and after treating with wazine and ivermectin I never saw that and it worried me. I wondered if they were, in fact, dead and if my treatment did anything for them. So, should I treat again and if I do, will I be able to see the dead worms afterward in the poop? Maybe I'm worried about nothing. Thanks in advance!