The redness and itchiness of face allergy is due to the stimulation of allergic inflammatory reaction, resulting in local capillary dilatation, which produces obvious redness and itching symptoms. Face allergy should immediately use water to clean the face, stop contact with allergens, timely medical treatment, follow the doctor’s instructions for medication. First, the acute stage of treatment measures 1, clean face: immediately with cold water or light salt water to gently wash the face, remove the substances that cause facial allergies; 2, local cold compresses: soaked in cold water with a towel on the face of the uncomfortable parts of the face, through the continuous cooling to play a role in alleviating the symptoms. Second, the chronic phase of the treatment measures face allergy treatment to anti-allergic drugs, other drugs play a supporting role, such as vitamins, anti-inflammatory drugs, etc. 1, anti-allergic drugs: that is, antihistamines, such as chlorpheniramine maleate tablets, diclofenac tadalafil, etc.; 2, anti-inflammatory drugs: such as allergy is more serious, can be combined with the use of medication, such as compound glycyrrhizic acid glycoside tablets; 3, vitamins: such as vitamin C, vitamin E, etc., to promote collagen synthesis, which is beneficial to the synthesis of collagen. Promote collagen synthesis, conducive to wound healing, while improving vascular permeability; 4, light avoidance agents: some patients due to sun exposure caused by facial allergies, can be combined with oral light avoidance agents, such as hydroxychloroquine, carotene, etc., so as to reduce the damage caused by light; 5, corticosteroids: try to avoid the use of hormone medications, if the other drugs do not have a good effect of treatment, you can consider this type of drug.