With the changes in our surroundings, allergies are increasing, and they are hereditary. Children with allergic conjunctivitis have blinking, eye rubbing, and sometimes nose rubbing that worsen with the seasons, and some children cough off and on for a long time after they are cured of a cold. This is because allergens affect all mucous membranes, including the conjunctiva of the eyes, the nasal mucosa, and the respiratory tract mucosa. In a child with chronic allergic conjunctivitis, you will notice that the sclera, or white eye, is not white or slightly blue like other children, but yellow and smudgy. And at a young age, there will be two dark circles under the eyes, which are caused by the inflammatory irritation of allergic conjunctivitis and poor circulation around the eyelids. Many allergic conjunctivitis also manifests itself in the evening when it worsens and there is a white, sticky discharge, which can also help with the diagnosis. The most common allergens are dust mites, mold, and pollen. They can be detected by allergy tests, but these are all part of life and are encountered every day, so it is difficult to completely avoid exposure. Therefore, the treatment of eye allergies is to avoid exposure and medication to control symptoms.