Scar redness may be a normal physiological phenomenon, does not require special treatment methods, pay attention to daily care can be; may also be caused by inflammation, you can use medication to relieve. 1. Scars are in the proliferative stage: generally about 3 to 6 months after the skin is damaged, and the proliferative stage is longer for special parts or keloid. Scars in the proliferative period are often accompanied by tingling and itching and other sensory abnormalities, which can be used externally to inhibit the proliferation of scars such as silicones and other drugs, and excessive keratinization of scars need to pay attention to moisturizing, avoiding spicy food, avoid scratching the scars. 2. Scar tissue infection: this situation will appear around the scar red, swelling, heat, pain and other inflammatory manifestations, at this time the need for anti-inflammatory treatment, can be used externally with anti-infective drugs such as fusidic acid, mupirocin cream, etc., you can also take antibiotics such as cephalosporin capsule, amikacin and other medications, microwave physiotherapy, the use of drugs must be carried out under the guidance of a doctor. Sudden redness of the scar or accompanied by pain and itching and other sensory abnormalities, need to go to a regular hospital, diagnosed and guided by a specialist in the treatment.