How to reduce the swelling of conjunctival edema is not clear in the clinic. Conjunctival edema may be caused by external stimulation, infection, allergy and other factors, which can be relieved by general treatment, medication and other ways. 1. External stimuli: If you usually sleep in an improper position, often rubbing the eyes and so on, resulting in lymphatic reflux obstruction, causing conjunctival edema. Avoid squeezing the eyes, do not rub the eyes, can be iced to promote swelling, pay attention not to use the eyes too much. 2. Infection: conjunctival edema is commonly caused by bacterial or viral infections, if bacterial infection, you can use antibiotics for treatment, such as compound tobramycin eye drops, levofloxacin eye drops, erythromycin eye ointment and so on. If it is caused by viral infection, anti-viral treatment can be carried out, such as ganciclovir ophthalmic gel, acyclovir eye drops and so on. 3. Allergy: Seasonal allergy, drug allergy, dust allergy, etc. may lead to the occurrence of conjunctival edema. These patients should avoid contact with allergens and use drugs such as azelastine hydrochloride eye drops and olopatadine hydrochloride eye drops for anti-allergy treatment. Conjunctival edema is recommended to go to the hospital in time to identify the cause of the disease, follow the doctor’s instructions to standardize the treatment, medication, do not unauthorized use of drugs.