If a small bug flies into the eye, do not rub the eye with your hand, it is possible to fix the bug in the eye, you can close the eye, turn the eyeball after the small bug rinsed out with tears, or you can buy a bottle of anti-inflammatory eye drops, flip the eyelid, turn the eyeball and then rinse yourself. If there is still a foreign body sensation in the eye, with symptoms of irritation such as grinding pain and tearing, you need to go to the hospital for a slit lamp examination to determine whether there is any bug foreign body in the eye. If there is a foreign body needs to be removed and the conjunctival sac rinsed with saline, you can order Pranoprofen ophthalmic solution four times a day to reduce the reaction, Befosol ophthalmic solution four times a day to order the eye, to promote the repair of the eye, and levofloxacin ophthalmic gel three times a day coated with the eye, to prevent infection.