Allergic redness of the face and swelling of the eyes are symptoms of contact dermatitis, which is an acute or chronic inflammatory reaction that occurs at the skin-mucous membrane contact site after contact with certain exogenous substances. It can be treated by general treatment, topical medication and oral medication. 1. General treatment: first of all, we should find and detach from the environment food or supplies that cause allergy, if it is caused by cosmetics, then we should avoid the re-use of the brand or ingredients. Facial cosmetics that cause allergies can be wiped with water and rinsed, and local cold compresses can be applied to reduce the swelling or itching of the eyes caused by allergies. 2. Topical drugs: can be used externally with glycerine lotion, or boric acid solution wet compresses, can also be used externally with a weak glucocorticoid Denadyl cream. 3. Oral medication: Oral antihistamines such as loratadine or cetirizine can be used for anti-allergy treatment. Allergies can lead to respiratory difficulties and other serious systemic reactions, face allergies, red eyes are swollen, it is recommended to consult a doctor in a timely manner, under the guidance of the doctor for treatment, the drug should be used in accordance with the doctor’s instructions, do not self-medication.