The common causes of constant tearing of the eyes include overuse of the eyes, eyelid entropion, tear duct obstruction, etc. The treatment methods include changing the habit of using the eyes, medication and surgery. 1. Changing eye habits: prolonged use of eyes, gazing at the electronic screen, staying up late, etc., visual fatigue can occur, stimulating the lacrimal glands to secrete tears, the need to change eye habits, a combination of work and rest, the scientific use of the eyes, you can also use a towel hot compresses on the eyes to alleviate the symptoms. 2. Medication: If the eye is infected by bacteria, virus and other infections such as conjunctivitis, keratitis and other diseases, it can also lead to an abnormal increase in the number of tears, you can follow the doctor’s instructions to use antibiotics or antiviral drugs to the cause of the treatment, such as levofloxacin drops, acyclovir drops and so on. 3. Surgery: Eyelid entropion, which is more common in the elderly, occurs when the skin of the lower eyelid is loose, leading to frequent tearing, and can be improved by removing part of the orbicularis oculi muscle fibers or excess loose skin. Narrowed or blocked tear ducts are often associated with congenital factors, burns, trauma, stones, etc., which can lead to tear spillage. Lacrimal flushing or tear duct probing can be performed, and surgical treatments, such as laser lachrymaplasty and nasolacrimal duct prosthesis, can be chosen if necessary. If your eyes are always tearing up, you need to let your eyes rest and relieve visual fatigue in time, and if the result is not good, you need to consult a doctor in time to find out the cause of the disease and follow the doctor’s instructions.