Redness and burning of the face due to allergy cannot be excluded as a result of an allergic reaction. If there are such cases, it cannot be ruled out that it is an allergic reaction to certain ingredients, so it is recommended to stop using those cosmetics that are suspected to cause allergies. If you work outdoors for a long time, or travel to the beach, this kind of redness and burning caused by sunlight is also possible. Therefore, sun protection must be done well, and the water temperature must not be too hot to wash the face at this time, and do not scrub with facial cleanser, the water temperature must be cooler as much as possible, and try to avoid seafood, beef and mutton and spicy food to avoid aggravating the skin allergic reaction. At the same time, you can use ezacridine lactate, or rehabilitation new liquid, or saline solution, wet 6-8 layers of sterile gauze, cold compress on the face, each time can be 20 minutes, 2-3 times a day for anti-allergy treatment.