I found roundworms this morning under where my birds roost and noticed yesterday one of my hens wasn't acting like herself. I did some research and came upon ivermectin cattle wormer pour on. My local farm supply store doesn't have much to choose from but they have this. They also have wazine which I've read mixed reviews on. Has anyone ever use this pour on wormer and if so what is the dosage and procedure to use it? I have never dewormed my birds and the only medication I have given them was corid. My hen seems less active and less interested in food or treats. Her crop felt squishy last night and this morning it was also squishy as if it's full of water. I put corid in the water as a precaution Because I've had an issue with cocci with her ever since I got her as a chick. The last time I treated her with corid was back in January. Could it be worms that's affecting her or a combination since her immune system is suppressed if she does have cocci? I will include a pic of the potential wormer I want to buy. Since the wormer is pour on could I treat her with that as well as corid in the water?