Well, so sorry to hear that your baby's tear ducts are blocked, so as a matter of fact, it is one of the most commonly seen problems new babies would suffer. And generally speaking, it could be cured without treatment in a few months. However, if the problem remains unchanged, you should give the baby a small surgery. It is true that sometimes breast milk could do some good to the problem, because it contains a lot of nutrition that could help with the tear ducts.
Yes, breast milk is often recommended as treatment for babies, who are suffering from blocked tear duct. Usually babies get blocked tear duct for congenital reason, which means they are born with it. The duct for tear draining from eyes to nose is not fully developed at birth or the membrane between the inner corner of eye and nose does not break or dissolve. With blocked tear duct, your baby might have watering eyes. What is worse is the infection might be built up in the inner corner of its eyes. Generally speaking, it could be very disappointing and worrying. Every parent would like to see the baby happy, beautiful and healthy. Yet because of the infections from blocked tear duct, your baby's eyes are not just watering, they are full of icky green pus. Many pediatricians would recommend the mothers to drop breast milk into baby's eyes, which could effectively control the infection of eyes. The discharge would be far better, although it doesn't help unblock the tear duct, yet it is much better than using antibiotic for a baby. And don't worry too much, because almost 80% of babies with blocked tear duct can outgrow the blockage.
Well, yes, breast milk can be helpful for blocked tear duct. And first, you should know that blocked tear duct is a result of an improperly formed tear duct that obstructs the tear drainage system. According to some researches, when the duct cannot drain the tears, they have nowhere to go and may collect in the eye and cause irritation. So it can be dangerous. Breast milk is often recommended by pediatricians as a treatment for babies with blocked tear ducts. In that way, it can just relieve the symptoms and lead to recovery. So you can have a try.