Generally speaking, blocked nasolacrimal ducts are often associated with local inflammation. If blocked nasolacrimal ducts occur in infants and children, they can be reopened by means of massage. If it is a child, it can be treated with topical tobramycin eye drops, if it is an adult, it can also be treated with tobramycin eye drops or with levofloxacin eye drops, but the effect of simple eye drops is not always good. If there is a long-term blockage of the nasal canal, resulting in significant tearing or localized purulent discharge, surgery is generally recommended in this case. The best way is endoscopic nasal endocapsular anastomosis, which is less invasive, no facial scarring, and quick recovery.