I recently had some respiratory issues with my flock and administered antibiotics. They seemed to have recovered well. I wanted to worm them and waited until after I was done with antibiotics. I noticed one pullet making a sneezing sound or funny hick up sound and did some research. Seems like gape worms. I have wazine that I was planning to use but don't think it works for gape. I also have ivomec oral or injectible but most of what I read says to use wazine first. I am concerened for the gape worms to do to much harm while I wait 10 days after administering wazine then use ivomec. Should I use ivomec first or use wazine then ivomec? Also can I just put drops of ivomec down there throat?