Sudden swelling of the eyes may be related to tears, mosquito bites, etc. Pathological factors such as granuloma, allergic blepharitis, etc. can also cause sudden redness and swelling of the eyes. Prolonged tearing, the muscles around the eyes due to prolonged tightness in a state of contraction, will cause eye swelling, can be used to reduce the swelling of ice. When the eyelids are bitten by mosquitoes or bees and other creatures, the local metamorphic reaction, causing itching, redness and swelling of the eyelids. Granuloma is an acute inflammation caused by the invasion of purulent bacteria into the eyelid glands, the local manifestations of redness, swelling, heat, pain, there may be pressure pain and hard nodules. The skin of the eye is thin and may cause allergic blepharitis when stimulated by allergens, resulting in epidermal congestion and oozing, with redness, swelling and obvious oozing of the eyelids. When there is redness, swelling and pain in the eyes, you can go to a regular hospital and follow the doctor’s instructions for treatment.