After a mosquito bites the eyelid, patients may experience discomfort such as redness, swelling and itching of the eyelid. Patients can be treated with localized cold compresses on the eyelid and medication to promote the swelling of the eyelid to subside and improve the discomfort. After the mosquito bites the eyelid, the saliva injected into the skin will cause the body to have an immune response, causing redness, swelling and itching of the eyelid. Patients can use localized cold compresses on the eyelids, and can also use soapy water to wash and relieve the symptoms of itching. Patients can also use glycerin lotion to stop the itching effect. Patients can also use glucocorticoid medication, such as tobramycin dexamethasone ophthalmic ointment, etc., to control inflammation and relieve eye discomfort. Daily patients also need to prevent mosquito bites, you can use flower water, anemone, etc. to repel mosquitoes, don’t scratch the affected area after being bitten by mosquitoes, to avoid aggravation of itching symptoms. It is recommended that patients with swollen and itchy eyelids should seek medical attention to assess their condition and follow medical advice.