Eye allergy is a common clinical condition. Because the conjunctiva is constantly exposed, it is easily exposed to airborne allergens such as pollen, dust, animals, feathers, etc. It is also susceptible to other bacterial and microbial infections, and the use of medications can cause allergic reactions in the conjunctival tissue. The choice of treatment after the onset of allergic symptoms depends on the severity of the patient’s symptoms and ocular surface lesions. The first is physical therapy, which includes cold compresses on the eyelids, or staying in an air-conditioned room, which also allows the patient to feel comfortable and avoid high temperatures as much as possible. The eye can be treated topically with various anti-allergic eye drops, such as mast cell stabilizers, such as sodium cromoglycate eye drops; antihistamines, such as emetine fumarate eye drops; and also topical glucocorticoid eye drops, as well as non-steroidal anti-inflammatory drugs. If the symptoms are very pronounced, systemic anti-allergy medication may be used. If the allergen is clearly identified, desensitization treatment can be considered to prevent the recurrence of allergic diseases as long as re-exposure is avoided.