It is also best to know what children's eyes are allergic to. In this case, you may need to go to the dermatology or respiratory department of a large hospital to test the allergen for children. Some may be stuck on the skin, and different allergens may be stuck in the skin with needles. In short, try to find the source of children's allergens, and then try to stay away from the allergen. Some children are allergic all the year round and may be allergic to mites at home. They need to regularly use ultraviolet light to sterilize and disinfect the bed at home and suck out the dead mites. If you don't know what allergies you are allergic to or a lot of things, you can give your child a small dose of injection of allergens for desensitization treatment. In this way, all kinds of antibodies will be produced slowly, and the allergy will gradually disappear in the future. If any reason is still unclear, just before the allergy season, some anti allergy drugs can be used in advance, or the anti allergy eyedrops can be used in advance to stabilize mast cells, prevent degranulation, and then promote the elimination of histamine.