Patients with symptoms of very itchy and red face may be caused by contact dermatitis, eczema, seborrheic dermatitis, etc. Patients can improve their condition through general treatment and medication. 1. Contact dermatitis: patients should avoid contact with dust, pollen, hair and other allergens, allergic to detergents, to reduce contact with detergents. Antihistamine drugs, such as cetirizine and ibastine, can also be taken under the guidance of the doctor for systemic treatment, and topical drugs, such as mometasone furoate cream and pimecrolimus cream, can also be used for local treatment. 2. Eczema: patients should reduce external stimuli, such as hot water scalding, violent scratching. Patients can follow the doctor’s instructions to use topical drugs, such as glycerine lotion, hydrocortisone, etc., can also take antihistamines, such as loratadine, cetirizine and so on. 3. Seborrheic dermatitis: you can follow the doctor’s instructions to use topical drugs, such as keto tacrolimus cream, etc., can also take antihistamines, such as cetirizine. It is recommended that patients strictly follow the doctor’s instructions, do not change the dose of drugs or private abuse of drugs, etc., should pay attention to the monitoring of the condition in life, if there is any abnormality in a timely manner, such as medical treatment.