Quoting Bettinas:" If you go to the pharmacy and buy some saline solution and some cotton balls, soak one in the saline ... [snip!] ... dried on. Same rules apply! Don't use the same piece of cotton to wipe it more than once because it'll spread the bacteria."
Quoting snglemama:" saline is not going to cure an eye infection. there are otc drops... I've had great luck with these... if it's caught early. if it's too bad, only perscriptions drops will work "