Itchy face may be skin allergies, such as eczema, contact dermatitis and other diseases, but dry skin and other physiological factors, or insect bite reactions and other diseases may also lead to itchy face, not necessarily all caused by skin allergies. 1. Skin allergies: itchy face is mostly considered to be caused by skin allergies, belonging to the allergic dermatitis, common eczema, contact dermatitis, urticaria, drug rash, atopic dermatitis and so on. 2. Physiological factors: In addition to skin allergies, if the skin on the face is too dry, it may cause the face to appear peeling, itching and other symptoms. 3. Insect bite reaction: its cause is mostly related to insect bites on the skin, if the face is bitten by mosquitoes and insects, causing an allergic reaction, the patient’s local skin will appear red, swollen, itchy and other symptoms. Itchy face may be related to skin allergies, but does not belong to the only cause of the symptom, after excluding physiological factors, it is recommended that patients seek medical examination to clarify the cause.