This is one of my 6 week old pullets. I noticed a week ago that her left eye was bleeding so I isolated her and started her in tetracycline. I also started putting antibiotic ointment on her eye. It's not really getting worse but it's not getting better. I can't keep her from scratching at it. I've also had 2 of my 4 week old pullets die in the last 3 days and another one is acting sick. They are all being kept together. The only thing I really notice is that they have a small red spot behind their eye. Please help.