In patients with redness and swelling of the upper eyelid, eye drops are usually applied to the conjunctival sac of the eye rather than to the surface of the eyelid. The redness and swelling of the upper eyelid is usually due to the inflammation of the eye caused by reactive edema, through the eye drops in the eye to eliminate the inflammatory reaction of the eye, in order to reduce the reactive edema of the eyelid. Therefore, eye drops should be applied to the conjunctival sac of the eye, not directly to the skin of the eye, and the therapeutic effect of the medication is usually not well exerted when applied to the skin. But for simple eyelid inflammation, such as blepharitis, allergies and other factors caused by redness and swelling, patients can also follow the doctor’s instructions to use eye ointment for treatment, can be applied to the eyelid area, such as erythromycin ophthalmic ointment, levofloxacin ophthalmic ointment and other anti-infective treatments, but also the use of tobramycin dexamethasone ophthalmic ointment and other anti-allergy treatments, to alleviate the discomfort of the eye. It is recommended that patients with red and swollen eyelids should seek timely hospital consultation to assess their condition, and under the guidance of the doctor for treatment.