The redness and itchiness of the face may be caused by repeated exposure to allergy-causing factors, which can be relieved by removing the triggers, moisturizing care and medication intervention. 1. Remove triggers: face always allergic, redness and itching phenomenon, may be related to contact with allergens, need to cooperate with the doctor to clarify the specific causes, if and contact with pollen, chemicals and other factors, need to stay away from allergens as soon as possible, to reduce local stimulation. 2. Moisturizing care: pay more attention to the care of the skin, pay attention to skin cleansing, at the same time to use the type of hydration and moisturizing skin care products, keep the skin moisturized, and pay attention to sun protection. 3. Drug intervention: if the allergy symptoms are more serious, can be used externally with glycerite lotion, can play a role in stopping itching and astringent, but also through oral loratadine, cetirizine and other antihistamines, so as to improve the local allergy phenomenon. The above drugs need to be used under the guidance of a doctor. If your face is always allergic to the phenomenon of redness and itching, it is recommended to go to the hospital in a timely manner, in accordance with the doctor’s instructions for standardized treatment.