My beautiful Nataylia is almost 8 months old and she is mostly white with some tan markings (ears, face, tail). She has drainage coming from only one eye, it's stained her white fur on the side of her face. It looks really bad. I've tried several different products from the pet store, unfortunately none of the products worked. I did also got an antibiotic to put in her eye to help the drainage, but again this did not work.  Do you have any suggestions that will both help with the drainage and also the staining?