My hen is about 11 months old. She was so sick she had wry neck but I treated for that and she is much better. Lab came back and she has large amount of worms and coccidosis. Vet said treat for both now but she has never been wormed. Online it says don't treat both at same time because it will make the bird too weak. HELP! Is Panacure okay to use in the feed and also treat her with Corrid or should I just treat with Corrid first then Panacure? I am questioning my vet.