Dry and itchy face is considered to be related to physiological factors such as skin dehydration, and may also be caused by dry eczema, atopic dermatitis, and pityriasis alba. 1. Physiological factors: If the skin is dehydrated or the climate is dry, it may lead to dry, flaky and itchy skin. 2. Dry eczema: Clinical manifestations include dry, cracked, flaky and itchy skin. The cause of the disease may be related to excessive loss of water on the surface of the skin, reduction of oil and poor perspiration. 3. Atopic dermatitis: clinical symptoms include dry skin, intense itching, etc. Its causes are mostly related to genetic, immune abnormalities and abnormal skin barrier function. 4. White furfura: the cause of the disease is mostly related to malnutrition, sun exposure and other factors. The patient will appear dry chaffy scales on the face, which can be accompanied by itching. There are many reasons for the dry and itchy face, after excluding physiological factors, it is recommended to consult a doctor in time to clarify the cause.