There was a post a couple of weeks ago about conjunctivitis and apple cider vinegar. Here's the link to that post. There were links to a couple of good web sites that talked about using apple cider vinegar and other more natural way to treat eye stains etc. Also, there were other posts/threads about eye stains recently in the Health & Diet forum. You will have to do a seach for them but they were informative also.
http://www.yorkietalk.com/forums/yor...r-vinegar.html
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Zack, Zeke, Zoey, Zipp RIP 6/28/12