breastmilk in eye

chloe🌸 • Mother of 1 little boy born on 12/13/2016 & step mother to an awesome 7 y/o.
Okay so my sons eye is red and is just a tad puffy, he has an appt tomorrow. Until then, his pediatrician recommended putting my breastmilk into his eye. Stupid question but how do I put breastmilk into his eye? Like eye drops???