Swollen eyes from cosmetic allergy can be quickly reduced by general treatment and medication, and the treatment needs to be carried out under the guidance of a doctor. 1. General treatment: first of all, you need to avoid re-exposure to cosmetics that cause allergies, and at the same time, avoid excessive touching of the swollen eyes, you can use cold towels to ease the discomfort. In life, you can eat a light diet, regular routine, quit smoking and drinking to promote the improvement of symptoms. 2. Medication: Patients can apply glycerine lotion to the eyes to relieve swelling, and need to avoid drugs into the eyes to cause discomfort; when the symptoms are serious, you can take cetirizine, loratadine and other anti-allergy drugs to promote swelling. The medication should be used in accordance with the doctor’s instructions, and is prohibited for those who are allergic to it. When allergies occur, it is recommended to seek medical treatment as soon as possible to avoid adverse consequences.