If your eyes are always allergic to allergens, you should pay attention to get rid of the allergens, use water to wash your face to remove the allergens, and order anti-allergy eye drops to treat the allergens, such as olopatadine hydrochloride eye drops, and so on. Eye allergy is a common disease in ophthalmology, generally because the mucous membrane of the eye, skin, etc. contact with the air suspended pollen, willow, smoke, dust, animal hair and other allergens triggered by allergic reactions caused by the eye may appear red, swollen, itchy, watery eyes and other symptoms. Patients should pay attention to looking for allergens in their normal life and try to avoid contacting allergens to reduce the risk of allergy, and should also wash their face with water more often to clean off the allergens attached to the face. When allergy symptoms appear, you can order anti-allergy eye drops for treatment, such as Olopatadine hydrochloride eye drops, azelastine hydrochloride eye drops and so on. All of the above medications should be administered under the guidance of a doctor. It is recommended that patients go to the hospital in a timely manner, to clarify the cause of the disease and follow the doctor’s instructions, do not self-medication, so as not to cause adverse effects.