Several clinical studies have shown that since each mother's milk is made specifically for her own baby, it is effective in ridding the infant's eyes and nose of viruses and germs. I have used it on my own children, and even on myself. Recently, my son had pinkeye; when I applied my breastmilk to his eyes several times a day, the conjunctivitis cleared up. A friend of mine used her breastmilk on all her family members whenever they got pinkeye, and thus for years she was able to avoid having to buy prescription eyedrops.