chicken coughing/sneezing help please

[jjs hens]

One of my buffs is coughing it been just over a week now, her eye looks like it has little bubbles in it, which ive only noticed today. i have 11 over chickens and 2 ducks, any advice would be gratefull our vet is not a bird vet at all. im worried about her.

the noise she makes is like a coughing sound now where as befor it sounded more like a sneeze.

Thanks for any help.

 

[jjs hens]

she shounds like she has a blocked nose.