Eight-year-old girl always blinking, black under the eye, may be conjunctivitis, allergies, tics, etc., can follow the doctor’s instructions topical eye drops, or oral medication, and pay attention to strengthen eye care and hygiene. 1. topical medication: girls always blinking, black under the eyes may be due to bacterial conjunctivitis and other diseases, affecting the child’s quality of sleep, rubbing the eyes caused by the local eye drops can be given to improve, such as tobramycin eye drops and so on. 2. systemic medication: the child repeatedly blinking, black under the eyes if it is caused by allergies, you can take oral antihistamine drugs to relieve, such as cetirizine; if you are suffering from tic disorders caused by, you can take oral haloperidol and other drugs to control. Children in the medication at the same time, pay attention to eye hygiene, try to avoid rubbing the eyes. Watching electronic products should not be too long, keep enough sleep, do not stay up too late and so on. When the child appeared to always blink, darkness under the eyes, you need to take the child to the hospital pediatrics in a timely manner, to clarify the cause of the disease to give targeted intervention treatment.