Allergic conjunctivitis is a very common ocular surface disease among pediatric ophthalmologists. It is an inflammatory eye disease in which the human conjunctiva produces a series of immune responses to external allergens and can affect both adults and children, and is especially common in children with allergies. The incidence of allergic ocular surface disease has been reported to be about 5%, accounting for about 20% of the total number of patients with ocular diseases. As the conjunctiva is exposed, it is easily exposed to airborne allergens and causes rapid or delayed allergic conjunctivitis. Children’s eye tissues and organs are not yet mature, and the conjunctival mucosa is extremely permeable, making them a natural candidate for allergic conjunctivitis. It is understood that allergic conjunctivitis is similar to other ocular surface diseases, with symptoms such as itchy eyes, tearing, foreign body sensation, burning sensation, and discharge, which often lead to misdiagnosis. However, a distinctive feature of allergic conjunctivitis is the itchy eyes, which is often so intense and unbearable that patients often cannot help but rub their eyes with their hands. When allergic conjunctivitis recurs, the color of the bulbar conjunctiva and corneal rim can become cloudy and even pigmented. In addition, in addition to eye discomfort, these patients can often have nasal allergy symptoms, such as itchy nose, runny nose, sneezing, or other allergy symptoms such as eczema and itchy skin, and this allergic conjunctivitis often comes and goes during the allergy season, with recurrent episodes. Allergic conjunctivitis is less likely to have more serious complications, but symptoms such as oddly itchy eyes can be troubling to patients’ lives, and still some patients can also suffer irreversible damage to their vision due to delayed treatment, so allergic conjunctivitis should also be taken seriously. Parents should be reminded to take their children to the hospital promptly when they are found to be rubbing their eyes frequently, and once the diagnosis of allergic conjunctivitis is confirmed, treatment should be carried out under the guidance of a doctor. Do not self-medicate for allergic conjunctivitis What are the current treatment measures for allergic conjunctivitis? The first step is to identify the allergen and remove it in order to receive good results. Common allergens include plant pollen, dust mites, cold and humid air, animal hair, etc. If the allergen is not yet identified, it is also necessary to first pay attention to keep the home environment clean, reduce the chance of contact with animals, flowers and plants, eat less seafood, etc., avoid possible allergens as much as possible, and exercise well to improve the body’s ability to fight allergic reactions in order to reduce allergic attacks. In addition, when allergic conjunctivitis attacks, children should be taught not to rub their eyes with their hands to avoid damaging the corneal epithelium. If symptoms such as redness and swelling of the eyelids and surrounding skin occur, local cold compresses or ice compresses can be applied to the eyes to make the local blood vessels constrict and reduce the leakage of intravascular substances to temporarily relieve the discomfort. If necessary, anti-allergic eye drops or glucocorticoid eye drops can be used under the guidance of a doctor, do not use medication without permission based on your own experience, so as not to lead to other diseases of the eye due to long-term wrong treatment.