Eyelid swelling refers to the eyelid tissue relaxation, rich blood vessels, and then the symptoms of edema, the common causes are allergic conjunctivitis, eyelid tissue inflammation, kidney function abnormalities. 1. Allergic conjunctivitis: the common symptom is itchy eyes, and it also manifests as foreign body sensation and burning sensation in the eyes, photophobia, you should go to the regular hospital to do the slit lamp examination, and the other application of azelastine hydrochloride eye drops and tobramycin dexamethasone eye drops for treatment. 2. Inflammation of the eyelid tissue: due to the stimulation of the inflammation of the eyelid tissue, the vascular fluid will slowly ooze out, and then the phenomenon of eyelid edema, generally take the anti-inflammatory treatment, you can use levofloxacin eye drops and tobramycin eye drops treatment. The use of drugs must be carried out under the guidance of a physician. 3. Abnormal renal function: when patients with abnormal renal function so that the patient’s body of water and sodium increase, too much water accumulated in the body of loose tissue, so that the eyelid edema, should go to the regular hospital in a timely manner to carry out the test of renal function. Swollen eyelids should pay attention to never rub your eyes with your hands, go to the hospital as soon as possible to find out the cause of the disease, to avoid aggravation of the condition.