The causes that can lead to swollen eyes are: eye strain, infection, allergy, eye trauma, etc. The swollen eyes can be treated by physical therapy and medication. The swollen eyes can be treated by physical therapy and medication. 1. Eye fatigue: If the swollen eyes are caused by eye fatigue, they can be relieved by eye exercises, Chinese massage, ice, etc. 2. Infection: The swollen eyes caused by infection need antibiotic anti-infection treatment, commonly used erythromycin ointment. 3. Allergy: It can be treated by antihistamines and glucocorticoids. Antihistamines such as olopatadine, azathioprine. Hormonal drugs such as Flomiron. Pay attention to the use of hormonal drugs to follow medical advice 4, eye trauma: If the eye is swollen due to trauma, ice can be applied first, and then observe the change in condition. If there is no relief, please seek urgent medical attention.