I'd keep her in the kennel the first night and then try putting her with the others when they go to bed, then back into her kennel during the days so she can eat, drink, rest and not worry about being picked on until she heals. This could have been started due to lack of sufficient protein and then became habit or it could be an indication of illness in the one being picked on, as Brahma Chicken5000 pointed out (which is not a long shot by any means, Brahma, but an excellent point). If your gal is eating well, drinking well her comb and wattles look good and her poops look normal, then as her wounds heal and everyone gets increased protein and "gets over it" regarding picking on her hopefully things will be peaceful in your flock.
