** Thanks for contacting HCM with your health concern 1. Since the scar/marks were caused by accidental injury thus treatment will be for a longer duration and start first by having an appointment with a cosmetic/ plastic surgeon for possibilities like: . application of silicone gels . use of compression bandages . laser therapy for scar/mark reduction. 2. ointment like mederma,bio oil,vaseline, scarguard [contains cortisone, vitamin E,silicone] are some of the products which you can buy over the counter or after consulting your doctor for skin lightening. 3. Other measures which one can adopt is/are: . Proper hydration [plenty of fluids/juices/herbal teas. . use good quality sunscreen [minimum SPF 20] . products which are rich in vitamin E and contain alpha hydroxyl acids are good for the skin . One can apply a mixture of honey-turmeric and sandalwood powder on the affected area. . Avoid going/moving outside during the peak hours [11 am to 5 pm] to avoid getting tanning and too much exposure to ultraviolet rays. . coconut oil, lemon juice,ripe papaya,yogurt are also helpful PS. It is important to realize that the treatment/management will make/ appear the scar smoother but it will never go 100%