There are many possible reasons for abnormal tearing of the eyes, including tear duct obstruction, fatigue due to overuse of the eyes, conjunctivitis, eyelid entropion irritation, etc. Artificial tears and other interventions can be chosen. 1. Lacrimal duct obstruction: when the lacrimal duct obstruction is combined with dacryocystitis, antibiotic eye drops such as tobramycin and ofloxacin can be used to control the inflammation and relieve the symptoms, but surgical treatment is needed to relieve the lacrimal duct obstruction. 2. Visual fatigue caused by excessive eye use: hydroxypropylmethylcellulose eye drops, ice boron eye drops and other options for intervention. However, on this basis, you need to reduce the time of reading, using electronic devices, etc., and take regular eye breaks. 3. Conjunctivitis (1) Allergic conjunctivitis: you need to get rid of the allergens first, and on this basis, you can choose the eye drops such as emetine and lodoxamide. (2) Infectious conjunctivitis: you need to choose sensitive drugs according to the pathogens of infection, such as for bacterial infections can choose levofloxacin and other antibacterial eye drops. 4. Eyelid entropion: Eyelid entropion eyelashes irritate the conjunctiva, which may lead to local itching and tearing. In severe cases, surgery is required. On the basis of surgery, the use of ofloxacin eye drops and bovine basic fibroblast growth factor eye drops can be used as adjunctive treatment. The above eye drops need to be administered under the guidance of a clinician; for abnormal tearing, prompt hospitalization is recommended.