Hi all! New to BYC and have a question. I have a flock of 4 all about 5mos old. About a week and a half ago I noticed my Silkie was sneezing. I took her to a vet who suggested short of lab testing to find out exactly what it was, to treat with an antibiotic. I added Tylan to water for 5 days. Silkie got better but now 2 of my other girls are showing symptoms. I assumed it was viral and am giving them immune booster and rubbed vet rx under wings. As I was putting them to bed and rubbing the vet rx, I noticed a few small bubbles forming in my BOs eye. I'm now thinking they have something else. The funny thing is the Silkie seems better. Should I treat again with the Tylan in water? Injections intimidate the heck out of me.... Would love guidance!