A red patch on the face may be caused by atopic dermatitis or skin eczema. Patients can take oral loratadine, cetirizine and other drugs, can also be used externally glycerine lotion, hydrocortisone butyrate cream and so on for treatment. The redness of the face may be caused by allergic dermatitis, which is caused by the contact of the facial skin with certain irritants, and is mainly manifested by the pink or reddish color of the facial skin, accompanied by an itchy sensation. Patients can be treated with oral loratadine, cetirizine and other drugs. Red face, there may be eczema caused by symptoms, but mostly accompanied by varying degrees of itching symptoms. You can use glycerine lotion, hydrocortisone butyrate cream and other drugs under the guidance of the doctor for treatment. There are many reasons for the red face, and it is recommended that patients go to the dermatology department of regular hospitals for standardized diagnosis and treatment in a timely manner. Avoid using unspecified ointment externally on your own to avoid delaying the condition or using improper medication.