I know it’s too late to rply but it’s for other new to coops whom this info can help . I had a chick who got same problem her entire eye was covered with white puss there are not vet close by so I searched for Terramycin but it was not available then I got a substitute called tettramycin I added...
Indeed they are the roo is kind of sick runny nose rest he walking and eating habits are normal so wanted to know the breed of this chicken to learn more . It’s not normal breed what we get in my city