About three months ago one of my hens was attacked by a stray dog. She healed very well except that she is not growing her feathers back on one side and only some of her tail feathers grew back. Now that the weather is getting nice it appears like she might be getting sunburnt while she dusts and sunbathes. Can I put sunblock on her? Perhaps aloe? She is laying eggs, but because of the attack they are really bumpy so I can identify which are hers if I need to separate them out and not eat them. Any recommendations?