Two of my chickens' eyes swelled up and became watery overnight, and because they had mites at the time, I am thinking it was from scratching (the chickens also had scratch-marks on their faces and combs, where the mites were), and not from eye worms. Is there something I could put in the eyes to prevent them from becoming infected?
![48890_imag0379.jpg](https://www.backyardchickens.com/forum/uploads/48890_imag0379.jpg)
![48890_imag0378.jpg](https://www.backyardchickens.com/forum/uploads/48890_imag0378.jpg)