It is a little early for pinkeye. I would guess that the momma cow had chlymidia or something of the such. I would use teremyacin in the eye, you can order it or some larger feed stores carry it. You might want to check the eye for inverted eyelid, like was stated above. The easiest way to fix it is to just snip it with a sharp pair of sissors, it will spread apart, and heal. It works really well. Vicki(posted 9010 days ago)