Red eyes can be treated by applying cold compresses to the eyes, rinsing the conjunctival sac, applying topical anti-allergy eye drops, identifying the allergens and avoiding contact with them. Cold compresses on the eyes, most of which are made with ice wrapped in a towel, can effectively relieve the discomfort of red, itchy eyes. Most of the clinics use saline to flush the conjunctival sac, which can reduce the presence of allergy-causing substances in the eye and alleviate the allergic reaction accordingly. Topical application of anti-allergic eye drops, such as: emetine fumarate eye drops, olopatadine eye drops and so on. If the effect is poor, you can consider using glucocorticoid eye drops for a short period of time, such as: flumethasone eye drops, tobramycin dexamethasone eye drops. After identifying the allergens, avoid contact with substances that are prone to cause allergies as much as possible. Specific treatments need patients to seek medical treatment in time and follow the doctor’s instructions.