How is eye tear to return a responsibility all the time

The reason for tears all the time is that the lacrimal duct of the patient is blocked by foreign bodies and the lacrimal duct is not unobstructed, which causes tears in the eyes; secondly, the patient's tears are reflexively increased due to eye infection and inflammation stimulation, usually accompanied by redness, swelling and pain in the eyes. It is recommended to go to the hospital for examination in time to clarify the cause and further treatment.