one of my girls had a yuckie eye that had white crud ... not as bad as yours but similar. I used saline eye wash on gauze 2x2's to wipe her eye and then used antibiotic eye ointment . ( just as you are) took a while but it worked. I got more and more gunk to wipe off as time went on. I did keep her penned seperately from the rest of my girls until she was cleared up. good luck with yours.....