Redness around a child’s eyes is considered to be related to infection, allergic reaction, mosquito bites and so on. 1. Infection: If a child’s eyes and surrounding tissues are infected with bacteria or viruses, an inflammatory reaction may occur, resulting in congestion and edema around the eyes. 2. Allergic reaction: If the child is allergic, contact with allergens will trigger an allergic reaction, which may result in redness, swelling, itching and scratching of the tissues around the eyes. 3. Mosquito bites: If a child is bitten by a mosquito around the eyes, the child will scratch and rub his hands because of itching, which can also lead to redness around the eyes. Redness around the eyes of children may also be related to other causes, it is recommended to consult a doctor in time to clarify the cause, and standardized treatment under the guidance of the doctor.