Red eyes may be caused by foreign objects, visual fatigue, conjunctival inflammation, etc. If you can’t get rid of it, you need to consult a doctor, and you can usually follow the doctor’s instructions to use topical medication to treat it. Dust, hair and other foreign objects in the eyes can not be discharged, can irritate the eye surface leading to red eyes, has not been able to discharge, then need to consult a medical professional to remove. When reading and using electronic products for a long period of time, the eyes do not get any rest, which will lead to visual fatigue, accompanied by eye soreness, congestion, redness and other discomforts. You need to correct bad eye habits, blink more when you use your eyes, and relax your eyes after a period of time by gazing into the distance. Infectious conjunctivitis, allergic conjunctivitis and other eye diseases can also cause eye redness, you need to consult a doctor for examination, follow the doctor’s instructions for local application of anti-infective drugs such as erythromycin ophthalmic ointment, anti-allergy drugs such as olopatadine hydrochloride eye drops, etc. for treatment. If the symptoms of red eyes are not relieved, or accompanied by other symptoms, you should go to the hospital in a timely manner, to clarify the cause and give targeted treatment.