I discovered that my flock of Marans had a pretty bad case of mites and/or lice. (I feel soooo bad because it was all up under their saddles and I forgot that would be a concern.) I was literally about to move them into my large flock of chickens, but now I can't. I treated with Ivermectin pour-on yesterday. They are locked out of their coop because I had to clean the coop super well and the inside's all wet. Problem is it's pouring rain and the coop won't dry out. Since I already put Ivermectin on, would it be safe for me to put the Marans in with the rest of the chickens or do I risk them passing it on? (It's supposed to rain for the rest of the week, so their coop is not going to dry out.)