There is no single way to reduce the swelling of an allergic eye quickly. It can be treated with ice packs and oral medication depending on the severity of the swelling. Eye allergy swelling, considered to be the eye skin contact with allergic substances caused by, such as pollen, dust or cosmetics, etc., may also be accompanied by itching, pain and rash and other discomforts. If the local just simple swelling, allergy symptoms are not particularly serious, you can first local ice packs to relieve, through the ice can promote local capillary contraction, reduce eye swelling. If accompanied by obvious itching, you can also apply local glycerin lotion to relieve. If necessary, you can also take oral loratadine, cetirizine and other drugs. If the eye swelling is more serious, accompanied by obvious itching or other discomfort, you can use hormone drugs under the guidance of the doctor, such as dexamethasone and so on. Eye allergy swelling, discomfort symptoms are obvious, it is recommended that timely medical treatment, drugs need to be used under the guidance of a doctor, do not blindly use their own medication.