The main cause of redness due to skin sensitivity is damage to the skin barrier. Repair methods are mainly: attention to strengthen skin care, external cold gel and medication. 1. Strengthen skin care. Keep the local skin clean, avoid excessive stimulation, and choose skin care products and cosmetics carefully. Strictly sunscreen, maintain a light and healthy diet. 2. Topical cold gel. Topical application of some medical cold gel can protect the skin. If it is accompanied by swelling and itching, apply ice packs to improve the discomfort. 3. Medication. Topical growth factor gel to promote the repair of the skin barrier; if there are obvious symptoms of allergy, it is best to follow the doctor’s instructions in time to use anti-allergy drugs for treatment. Each person’s skin state is different, there will be some changes in the treatment, with the above symptoms, we recommend that you go to the regular medical institutions in a timely manner, improve the examination to clarify the diagnosis, and comply with the views of specialists in the use of medication.