If your eyes are red, swollen and painful, you should first identify the cause and then treat the cause. Common causes include eye trauma, allergic conjunctivitis, and granuloma. Common causes include eye trauma, allergic conjunctivitis, granuloma and so on. In terms of treatment, general treatment and medication are mainly carried out. 1. Eye trauma: If the eyes are red, swollen and painful due to eye trauma, cold compresses can be applied to the local area within 24 hours after the injury to relieve the symptoms, and hot compresses can be applied to the local area after 24 hours to improve local blood circulation and alleviate the above symptoms. 2. Allergic conjunctivitis: If the eyes are red, swollen and painful due to allergic conjunctivitis, you can apply levocabastine eye drops, emetine eye drops and other anti-allergic eye medicines. If the symptoms are serious, you can be instructed by the doctor to apply Benadryl, Loratadine and other antihistamine oral drugs to improve the clinical symptoms. 3. Emphysema: If the eyes are red, swollen and painful due to emphysema, antibiotic drugs such as levofloxacin eye drops and tobramycin eye drops can be applied under the direction of the doctor to promote the inflammation to subside. If the symptoms are serious, surgery should be considered to drain the pus. Red, swollen and painful eyes, it is recommended to consult a doctor as soon as possible, after clarifying the specific causes, under the guidance of the doctor reasonable application of related therapeutic drugs.