Cheryl, the feathers will grow back.
You might want to give your bored hens something to do while locked up. I give my hens grains that have not been removed from the plant, i.e. millet, broomcorn, even corn on the cob. They have to work at getting the goodies. This might help a bit.
If you got the betadine or iodine you should dilute it with warm water and then squirt it onto the wound to clean it. You can also make a saline solution with warm water and use that to clean it. Use the saline solution about twice a day for a couple of days and then you can do it once a day for...