My daughter had a clogged tear duct at about 10 days old. Severe enough that we landed up at CDH for the pediatric ER. When I asked about it, he just shook his head and asked if I had read it on a Mom’s page. I think it’s just really hard to ensure that it’s sterile and you could be introducing more bacteria or germs into the eye. (I know pink eye is different than a clogged duct, but just wanted to make sure that the OP talks with their doc before trying an at home remedy. )