I would use honey. It is excellent for eye infections.
I use raw honey. Manuka honey is great also.
"You may either put a drop or two of honey directly on your eyes or put three tablespoons in 2 cups of boiling water, stir to dissolve, let it cool, then use as an eyewash several times a day. The honey has antibacterial properties and unpasteurized honey has Antibiotic properties. Honey will soothe the eye and promote healing."