Tear duct obstruction is not supported by the data that it generally takes a few days of washing to clear the tear ducts. Some patients can have their tear ducts unblocked by tear duct flushing, but some patients require surgical treatment to unblock the tear ducts. Tear duct obstruction patients can feasible tear duct flushing, but the specific effect varies from person to person, generally can follow the doctor’s instructions two to three times a day, some patients a few days to clear. Some patients cannot clear their tear ducts by means of tear duct irrigation, and may need surgical treatment, which can be chosen according to the patient’s specific situation, such as nasal lacrimal sac anastomosis, lacrimal duct implantation, and so on. It is recommended that patients with tear duct obstruction should consult a doctor in a timely manner to assess their condition and follow the doctor’s instructions for treatment, rather than dealing with it blindly.