Dry red face skin may be caused by contact dermatitis, seborrheic dermatitis and other diseases. 1. Contact dermatitis: the etiology is mainly related to the allergic reaction caused by skin contact with exogenous substances. Patients will have localized erythema, scaling, pimples and other symptoms, and if contact dermatitis occurs on the face, dryness and redness may occur. 2. Seborrheic dermatitis: the etiology is not clear, may be related to infection, diet, immune dysfunction and other factors. Patients will have localized erythema, flaking and other symptoms, which can be seen on the scalp, face and so on. There are more reasons for dry and red facial skin, and you should go to a regular hospital to get a checkup and clarify the cause of the disease.