Hi, Your daughter may be having post traumatic ecchymosis. There may be blood oozing in dermis due to blunt trauma. The blood spread in in dermis and lead to reddish patch called ecchymosis. The lesion may be called localised purpura. Do not worry, the lesion might fade within few days to few weeks. However, you may consult dermatologist. Still, I would like to give few tips... - cold compresses may be done - apply thrombophob oint - give vitamin C and vitamin K derivative like orsi-K I feel this might help you.. Thanks Dr. Ilyas Patel MD