One of our hens, 11 months old, started acting very funny two weeks ago, standing alone, eyes closed. i examined the poop and found long spaghetti like worms, i assumed were roundworm. i treated her right away for 5 days with .8 cc of panacur daily and separated her from the flock. the rest of the flock oddly is fine, and i have seen no worms in their poop. after treatment, i no longer see any worms in the poop but i think it took a huge toll on this chicken, she lost a lot of weight and just stands with eyes closed and will barely eat. any suggestions to turn her around?