The left eyelid is swollen to clarify the etiology, if the eyelid appears red and swollen with the hand touching the obvious pressure pain, preliminary consideration is caused by blepharitis, that is, pinkeye, wheal, because it is an inflammatory disease, it is recommended that anti-inflammatory treatment, such as the point of tobramycin eye drops, the evening before going to bed coated erythromycin ophthalmic ointment and oral cephalosporin drugs, such as inflammation subsides after the swelling of the eyes will be better. If the eyelids see redness and swelling with itching, preliminary consideration is contact dermatitis, because it is an allergic disease, it is recommended that anti-allergy treatment, such as eyelids coated with tobramycin dexamethasone ophthalmic ointment, oral cetirizine tablets and other anti-allergy drugs. If the eyelid suddenly swollen after eye trauma, preliminary consideration is eyelid hematoma, trauma early eyelid cold compresses, middle and late change to eyelid hot compresses, can promote further absorption of stasis.