Itchy red face may be related to allergic dermatitis, seborrheic dermatitis, hormone-dependent dermatitis and other reasons. 1. Allergic dermatitis: Cosmetics and other ingredients can lead to skin allergies, causing the body to develop an abnormal immune response, the phenomenon of itchy red face. 2. Seborrheic dermatitis: mostly occurs in seborrheic areas, manifested as red spots, greasy, accompanied by itching. 3. Hormone-dependent dermatitis: frequent use of hormones can cause dependent dermatitis, which can lead to skin erythema, pimples and other symptoms, can be accompanied by itching. It is recommended that people with itchy red face go to the hospital in a timely manner to clarify the cause of the disease and standardize the treatment under the guidance of the doctor, so as not to delay the condition.