I tried something similar, two drakes and three then four hens. It was a disaster. Drakes are hormone driven sex maniacs with long memories about which females rejected them. My opinion, immediately put the offending drake in drake jail. Then, consider finding him a new home. In my experience, it only got worse, not better. I know, the drakes are the most personable ducklings so we fall in love with them. But, unless you want to permanently deal with issues, early intervention might help. Btw, because I waited, one female died, one struggles with her eyesight because the scar tissue on the back of her neck pulled the skin so tight her vision is impaired, and I had to get rid of the second drake too because he became just as bad but to different females. Others might have better experiences but mine wasn’t good.
I put coconut oil mixed with a little bit of lavender oil on the wounds. I know others use vetricin spray from the feed store.
