 Treating pink eye is an onerous task at best. Unfortunately, pink eye is not quite as easy to deal with as foot rot and is a lot more contagious. So getting on top of the problem quickly is of paramount importance. Once pink eye gets started, the first thing to do is to make sure all of your fly control gadgetry is in place and working. Those fly tags you snapped on before cattle were turned out on grass probably are about used up.