Facial allergies that go back and forth and stay bad should go to the dermatology department of a regular hospital for standardized treatment under the guidance of a doctor, and at the same time, after the symptoms have improved, undergo testing for allergens to clarify and stay away from allergens. The cause of facial allergy may be caused by the use of certain cosmetics or contact with allergens such as dust mites, you should immediately stop contact with the suspected allergens. And follow the doctor’s instructions to take oral antihistamine drugs such as Benadryl and Loratadine, if the face is severely allergic, short-term use of glucocorticoid drugs, such as mometasone furoate ointment, etc., to relieve the symptoms of facial allergy. Patients whose allergy symptoms are relieved can undergo allergen testing to clarify the allergens and undergo desensitization treatment. For patients who cannot clarify the allergens, they should avoid contacting all suspected allergens in their daily life, for example, for those who are allergic to certain cosmetic products, they should avoid using cosmetic products containing allergic ingredients in order to prevent recurrence. At the same time, physical exercise should be strengthened to increase physical fitness.