Allergy, redness and swelling of the face are mostly seen in patients with allergies, where the skin is more sensitive while the barrier function of the skin is impaired and the skin is thinner. Patients with facial allergy, redness and swelling can take the following treatment measures: First, the protection of the skin barrier must be strengthened, and treatment such as local moisturizing of the skin can be enhanced. Second, if the allergy is more serious and the redness and swelling are aggravated, certain anti-allergy drugs can be used for treatment. Third, if the symptoms of allergy, redness and swelling cannot be completely solved, further treatment can be applied with laser and other auxiliary measures, and comprehensive treatment can make the symptoms of facial allergy, redness and swelling get more complete relief.