HELP!!! My hen it loosing feathers I autumn and has swollen eye.

[kettle chickens]

Any advice gladly received. My hen has a swollen eye we have been

bathing now for nearly 2 weeks (doesn't seem to be contagious to the rest of the flock) she is also loosing quite a lot of feathers from her breast. Does anyone know what this is and how is can be cured??

 

[Eggcessive]

Respiratory diseases such as mycoplasma gallisepticum (MG) or mycoplasma synoviae (MS) can cause swelling of the eyes and sinuses, sneezing, gasping, and nasal and eye drainage. MS can also cause breast blisters or scabs from lying on the ground a great deal of the time. MS can also cause swelling of the leg and feet joints. Antibiotics such as oxytetracycline or tylosin may be obtained through your veterinarian in the UK. Here are some links to read:
http://www.thepoultrysite.com/disea...tion-mg-chronic-respiratory-disease-chickens/
http://www.thepoultrysite.com/diseaseinfo/99/mycoplasma-synoviae-infection-ms-infectious-synovitis/