Give him or her vit c too, it will help fight against d infection.

Get normal saline infusion, puncture it, soak cotton balls with it and clean d discharge 3-5 times daily. Use each cotton wool ball to clean one and discard, if there's no improvement after 2 -3 days, take him to d hospital. Never drop breast milk inside ur baby's eyes, its increases d infection.

I had similar experience with my babe. I did not use anything but breast milk and mild water to clean and it was cleared. Are you dropping the breastmilk directly from the breast? Drop it in the spoon and allow to cool, since it's somehow warm. Above all, take baby to the hospital for proper check. Bless you.