Swollen eyes are generally related to physiological factors, conjunctivitis, kidney disease, etc., and need to be treated according to different situations. 1. Physiological factors: excessive mental stress, overwork, poor sleep, incorrect sleeping posture, low pillow and other conditions may lead to swelling of the eyes, but these are normal physiological phenomena, without special treatment, you can also choose to ice packs to promote swelling. 2. Conjunctivitis: Conjunctivitis is caused by direct contact between the conjunctiva and the outside world, stimulated by infectious and non-infectious factors in the surrounding environment. You can use levofloxacin eye drops, acyclovir eye drops and other drugs according to medical advice. 3. Kidney disease: Kidney disease leads to decreased drainage function of the kidneys, which leads to sodium and water retention, and can cause eye edema or even generalized swelling. It needs to be treated for the primary disease. If your eyes are swollen, not relieved by rest or accompanied by other discomforts, you should consult a doctor in time for examination and treatment as prescribed by the doctor, and do not use medication on your own to avoid more serious consequences.