There are many reasons why children suddenly have especially heavy eye droppings like pus, such as bacterial conjunctivitis, dacryoadenitis and so on. It is recommended to go to the hospital in time for examination and symptomatic treatment after finding out the cause of the disease. 1. Bacterial conjunctivitis: children often use dirty hands, rubbing the eyes or improper use of the eyes, is likely to lead to bacterial infections, thus causing bacterial conjunctivitis, there will be a pus-like eye manifestations, at the same time, there is an itchy feeling of the eyes, dryness, and so on. 2. Dacryoadenitis: Dacryoadenitis is an inflammation of the lacrimal gland, so it can lead to fever, redness, swelling and pain in the lacrimal gland, which can lead to the secretion of pus-like eye droppings. Pay attention to wash your hands diligently, don’t rub your eyes with your hands, and make sure you get enough sleep so that your eyes get enough rest. Eat more fresh vegetables and fruits and avoid spicy and greasy food.