When a patient’s eyes are too swollen to open, the first step is to identify the cause. There are many causes of eye swelling, first of all, trauma can cause eye swelling. When a patient suffers from eye trauma, inflammatory exudation due to soft tissue damage to the skin can cause eyelid swelling. If this occurs, an ice pack can be applied early in the trauma to reduce inflammatory exudation. Eyelid swelling can also be caused by infection, such as bacterial infection causing conjunctivitis or causing acute cellulitis, which may also result in localized swelling and pain and require antibiotics for anti-infective treatment. If the skin of the eye is allergic to allergens, the eye may also be swollen. If this occurs, oral anti-allergy medication is needed to relieve the symptoms. This condition also requires further examination at a hospital to identify the cause and provide targeted treatment according to the cause.