Whenever I saw an injury I generally washed it off and applied a little antibiotic ointment.

But most important thing to do: separate the animals. Males are just too persistent sometimes.

Now would be a good time to use that indoor enclosure if you have it ready. If not, find some way to divide the outdoor pen in two. Maybe slip a board down the middle and prop it up with bricks.

And if you can't separate them, at least put more visual barriers into the pen so the male can't always see the female. Rocks, logs, blocks, etc.

Food also distracts the male. You could keep piling his favorite food in front of him :->

Mine were always obsessed with carrots.