The causes of eye redness and swelling include eye allergy, eye inflammation, eyelash inversion, etc., which need to be analyzed specifically; some people may have eye redness and swelling after eating spicy food, but it will be relieved in a short period of time. 1. Eye allergy: eye allergy can lead to allergic blepharitis, allergic conjunctivitis, etc., and the eyes will be congested and swollen; dexamethasone cream can be used under the guidance of the doctor. 2. Eye inflammation: Conjunctivitis or keratitis caused by bacterial infection will lead to conjunctival congestion and conjunctival edema, and there will be redness and swelling of the eyes; Tobramycin eye drops can be put in under the guidance of the doctor for treatment. 3. Eyelash inversion: Eyelash inversion condition is easy to rub the eyeball area, so there will be redness and swelling of the eye, need to repair the eyelashes. There are many causes of redness and swelling of the eyes, and if the cause cannot be determined, it is recommended to go to a regular hospital for treatment.