Our youngest daughter began getting eye infections / pink eye / conjunctivitis around the age of four (caught it at daycare). It didn't seem to matter how careful she was or how sterile her environment - if she came within a mile of it - she got it. By age nine, she had had multiple prescriptions of antibiotic eye drops and was up to the most powerful doseage her little body could take. It would always take two rounds of faithful twice daily doses - until the prescription was gone. Then in a matter of months, weeks or even days, she had it again. Two years ago (she is now eleven), in desperation, I did an internet search for "natural" remedies and found an internet site that sold mesosilver eye drops. As soon as we got it, we put one drop in each eye (in the morning) and then again in the evening. The next morning her eyes were completely clear and she has never had pink eye again! No kidding! I would have never believed it, if I hadn't seen it for myself.
Hope this little testimonial will bring hope and help for someone else!