why does my chicken keep sneezing?

[vtara16]

My chicken just keeps on sneezing. I put her on Oxytetracycline, because she was sneezing and had labored breathing. Now she just keeps sneezing.
I am unsure of what to do. She does not seem to have any other problems. Does anyone have any suggestions?

 

[Luvducks]

I have a couple doing the same. I seperated them and put antibiotic in the water. They have a heat lamp at one end so if they are cold they are able to get warm. It IS cold here right now. I do not know what else to tell you so maybe someone with more experience can help. I am going to keep these two on antibiotic for 7 days.