Hi everyone, one of my silkies (out of seven various hens), has developed a terrible issue with her left eye-- looks like a yellow growth from the corner of her eye. I had treated the hen's drinking water with tetracycline. After about a week (maybe?), I did not see this yellow growth and stopped the tetracycline. 3-4 days later it has come back and gotten much worse. This did start once we had severe rain for a few days. I have enclosed photos. All of the other hens seem fine (knock on wood!) Any advice would be greatly appreciated!