Lower eyelid swelling, may be associated with mosquito bites, skin allergies, lower eyelid blepharitis and other conditions, swelling methods include life conditioning, drug treatment (ofloxacin eye drops, etc.), swelling requires a certain process, avoid the pursuit of the so-called rapid swelling. 1. Mosquito bites: If the lower eyelid area is bitten by mosquitoes, redness and swelling will form, so you need to avoid scratching and keep the area clean. Can also with oral cetirizine hydrochloride tablets and other drugs to relieve. 2. Skin allergy: If it is caused by skin allergy in the lower eyelid area, there will be obvious redness, swelling and itching symptoms. You can apply tobramycin dexamethasone ophthalmic ointment for treatment, and take oral loratadine tablets, diclofenac tablets and other medications if necessary. 3. Lower eyelid blepharitis: these patients will have redness, swelling and pain, and need to be treated with antibiotics, erythromycin ophthalmic ointment, ofloxacin ophthalmic solution and other drugs. It is recommended that patients seek timely medical attention, follow the doctor’s instructions after the examination, actively cooperate with the doctor’s treatment, avoid self-medication.