Active antiallergic treatment is required for face allergy, and then the allergen should be found out, and then contact with the allergen again should be avoided in the environment, and antiallergic drugs can be taken, such as oral desloratadine, once a day, and compound glycyrrhizin tablets can be taken for serious cases. Patients with hypertension should use it with caution, cooperate with cold spray treatment as appropriate, and other symptoms should be treated symptomatically. Scratching is not recommended for red itching to prevent scratching skin, skin infection and skin scar and pigmentation. In general, you should enhance your own immunity, pay attention to sunscreen, avoid external cosmetics during the onset of the disease, do not apply masks indiscriminately, which can prevent allergic reactions. In general, you should pay attention to adequate physical exercise and sleep, avoid spicy, stimulating diet, avoid alcohol, and use external medical skin care products for daily skin care.