Fly into the eye, you need to immediately remove the foreign body, and tears rinse, and then topical medication, as follows. 1. Remove the foreign body: if the fly into the eye need to check as soon as possible, can see the foreign body, need to remove the foreign body in a timely manner, can be used to special cotton swabs to remove, or with a clean handkerchief to remove. 2. Tear flushing: If no foreign body is found during the examination, the foreign body can be removed by tear flushing. For those who have no tears, the foreign body can be removed by stimulating the nasal cavity to increase the internal fluid. 3. Topical medication: after the removal of the foreign body, if you feel discomfort in the eyes, you can use chloramphenicol eye drops, erythromycin eye drops and so on, in order to prevent infection. If the effect is still not good after removing the foreign body and eye flushing, or if you still feel discomfort in the eyes, it is recommended to consult a doctor in time and follow the doctor’s instructions to standardize the treatment.