Cosmetic allergies on facial skin can be quickly desensitized by immediately stopping use, washing the face, moisturizing and hydrating, and promptly seeking medical attention. Most women use cosmetics in their daily lives, but due to personal constitution and the coloring, fragrances and other chemical ingredients in some cosmetics, it can lead to allergies on the face. 1. Discontinue use of cosmetics immediately when you realize that your face is allergic. 2. As soon as possible water cleansing, you can use cotton pads and warm water to clean, can reduce the stimulation of the skin, do not use ice water to wash your face, will hurt the skin. 3. Moisturizing and hydration, you can use medical sensitive skin special repair skin care products applied to the face, play a role in repairing and soothing. 4. Timely medical care, allergy is more serious, it is recommended that the hospital dermatology consultation in a timely manner, under the guidance of the doctor to prescribe some anti-sensitivity drugs and some topical ointment, such as antihistamines and other anti-sensitivity.