Dry and flaky skin under the eyes may be caused by physiological reasons and cosmetic contact dermatitis. 1. Physiological reasons: may be due to the local climate is dry, cold, the skin is in this environment for a long time, the surface is easy to lose water, caused by the bags under the eyes of dry skin peeling. 2. Cosmetic contact dermatitis: allergy-prone people, when the skin at the bags under the eyes comes into contact with certain allergens, such as eye creams and other skin care products, resulting in an abnormal immune response of the skin, thus inducing allergies, called cosmetic contact dermatitis. The main manifestation of dry skin, skin, accompanied by itching symptoms. Dry skin under the eyes may also have other causes, it is recommended to go to the hospital in a timely manner to improve the examination, to clarify the cause of the cause of treatment under the guidance of the doctor.