The first treatment for facial allergies is to detach from the sensitizing factor, which can be treated with antihistamines and other medications. The first treatment of allergy is to detach from the allergen, after detaching from the stimulating factors, the allergic reaction can often be relieved, and mild facial allergy can be relieved on its own after detaching from the environment. In addition, under the guidance of the doctor can be reasonable use of antihistamines to carry out anti-allergy treatment, the current clinical commonly used second-generation H1 receptor blockers, such as loratadine. Loratadine is contraindicated for allergy to drug components, and adverse reactions mainly include gastrointestinal reactions, dry mouth, headache and so on. If the facial allergy is not relieved after detaching from the sensitizing factors, you should consult a doctor in a timely manner, and use the medication reasonably under the guidance of the doctor.