My hen is 11 weeks old and i caught her and her "sister" fighting over watermelon. Well I noticed their combs are red like they got sunburned. I had their small pool out there for them cause it was hot today but also windy. It was partially in the sun and shade. Anyways I put vaseline on it and washed their combs and feet before bed. I noticed on my larger hen that she had blood. I looked on her neck under feathers and there is an opened wound! She keeps clawing at it so I put gauze and medical tape around her after i cleaned with hydrogen peroxide and she has stopped scratching that area. I have her with the other 2 and they haven't pecked her. I have no money for a vet. Should I isolate her tomorrow right when they wake up. I tried to isolate her tonight but none of them were having that.they all started calling each other and jumped to get out of their bed. I do bring them in at night so i know they are safe even though they have a safe enclosed home outside. I am so afraid to lose her! I love them so much! Also can too much watermelon give them loose stool. I would assume it would. They eat normal starter feed everyday. I just gave them frozen watermelon a couple of times today.