The redness and itchiness of face allergy may be related to contact dermatitis or urticaria, after diagnosis, relevant drugs can be used for treatment, the cause of the disease is different, the treatment method is also different. 1. Contact dermatitis: allergens should be identified, and avoid re-exposure. If the lesions appear oozing, the available boric acid solution wet compresses, play a clean antibacterial, astringent swelling effect; can also be used under the guidance of a doctor, mometasone furoate, tacrolimus ointment, etc.; can also be taken orally loratadine, and cetirizine and other antihistamine antiallergic, antipruritic treatment. 2. Urticaria: When urticaria occurs on the face, facial allergy and itching can occur. Patients should first actively search for allergens, and avoid re-exposure; can be used externally with glycerine lotion and other treatments, but also under the guidance of a doctor, as appropriate, external use of mometasone furoate and other glucocorticoid ointment, and oral levocetirizine and other antihistamine drugs. It is recommended that patients with allergic itchy face go to the regular hospital in time, after a clear diagnosis under the guidance of the doctor standardized treatment. When using medication, be sure to follow the doctor’s instructions, safe and reasonable use of medication, do not self-medication.