My two year old son scraped his face. It swelled and I tried to ice it-no bleeding. It left two vertical scabs on his cheek. I put ointment on them and in a few days they sloughed off. But two dark scars are still there-not raised- just dark strips or pigmentation on his olive skin. Doctor suggested Mederma and high SPF sunscreen. I am doing this for five days now with no change. Am going to pediatric dermatologist at first opening, but I am disturbed. Doctor said it may not go away completely. I feel horrible and will do anything to correct! Please advise. Thank you.